diff --git a/packages/Cartopy/meta.yaml b/packages/Cartopy/meta.yaml
index 4f5a42b4e68..8928d762f23 100644
--- a/packages/Cartopy/meta.yaml
+++ b/packages/Cartopy/meta.yaml
@@ -34,4 +34,4 @@ about:
   home: http://scitools.org.uk/cartopy
   PyPI: https://pypi.org/project/Cartopy/
   summary: A library providing cartographic tools for python
-  license: LGPL-3.0-or-later
+  license: LGPL-3.0+
diff --git a/packages/Pygments/meta.yaml b/packages/Pygments/meta.yaml
index fe2ec00a192..005ca9a8206 100644
--- a/packages/Pygments/meta.yaml
+++ b/packages/Pygments/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://pygments.org/
   PyPI: https://pypi.org/project/Pygments
   summary: Pygments is a syntax highlighting package written in Python.
-  license: BSD License
+  license: BSD-2-Clause
diff --git a/packages/RobotRaconteur/meta.yaml b/packages/RobotRaconteur/meta.yaml
index 7ddd2a6d7b2..874bc4eea48 100644
--- a/packages/RobotRaconteur/meta.yaml
+++ b/packages/RobotRaconteur/meta.yaml
@@ -54,3 +54,6 @@ build:
       $WASM_LIBRARY_DIR/lib/libboost_regex.a \
       $WASM_LIBRARY_DIR/lib/libboost_system.a \
       -o out/Python3/RobotRaconteur/_RobotRaconteurPython.so
+about:
+  home: https://github.com/robotraconteur/robotraconteur
+  license: Apache-2.0
diff --git a/packages/affine/meta.yaml b/packages/affine/meta.yaml
index 4bb231b17ec..dc4a9fedaa4 100644
--- a/packages/affine/meta.yaml
+++ b/packages/affine/meta.yaml
@@ -7,10 +7,10 @@ source:
   url: https://files.pythonhosted.org/packages/0b/f7/85273299ab57117850cc0a936c64151171fac4da49bc6fba0dad984a7c5f/affine-2.4.0-py3-none-any.whl
   sha256: 8a3df80e2b2378aef598a83c1392efd47967afec4242021a0b06b4c7cbc61a92
 about:
-  home: ""
+  home: https://github.com/rasterio/affine
   PyPI: https://pypi.org/project/affine
   summary: Matrices describing affine transformation of the plane
-  license: ""
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - kjmalek
diff --git a/packages/aiohttp/meta.yaml b/packages/aiohttp/meta.yaml
index b135a9ef7ed..9bb6e209964 100644
--- a/packages/aiohttp/meta.yaml
+++ b/packages/aiohttp/meta.yaml
@@ -21,4 +21,4 @@ about:
   home: https://github.com/aio-libs/aiohttp
   PyPI: https://pypi.org/project/aiohttp
   summary: Async http client/server framework (asyncio)
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/aiosignal/meta.yaml b/packages/aiosignal/meta.yaml
index 361cf17213f..3c5911a2e04 100644
--- a/packages/aiosignal/meta.yaml
+++ b/packages/aiosignal/meta.yaml
@@ -15,4 +15,4 @@ about:
   home: https://github.com/aio-libs/aiosignal
   PyPI: https://pypi.org/project/aiosignal
   summary: "aiosignal: a list of registered asynchronous callbacks"
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/altair/meta.yaml b/packages/altair/meta.yaml
index 91895133c4a..ff8b2ef53c0 100644
--- a/packages/altair/meta.yaml
+++ b/packages/altair/meta.yaml
@@ -7,10 +7,10 @@ source:
   url: https://files.pythonhosted.org/packages/46/30/2118537233fa72c1d91a81f5908a7e843a6601ccc68b76838ebc4951505f/altair-5.3.0-py3-none-any.whl
   sha256: 7084a1dab4d83c5e7e5246b92dc1b4451a6c68fd057f3716ee9d315c8980e59a
 about:
-  home:
+  home: https://altair-viz.github.io/
   PyPI: https://pypi.org/project/altair
   summary: "Vega-Altair: A declarative statistical visualization library for Python."
-  license:
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - joelostblom
diff --git a/packages/annotated-types/meta.yaml b/packages/annotated-types/meta.yaml
index dcbe5a8ade9..fb6ee40162e 100644
--- a/packages/annotated-types/meta.yaml
+++ b/packages/annotated-types/meta.yaml
@@ -7,7 +7,7 @@ source:
   url: https://files.pythonhosted.org/packages/28/78/d31230046e58c207284c6b2c4e8d96e6d3cb4e52354721b944d3e1ee4aa5/annotated_types-0.6.0-py3-none-any.whl
   sha256: 0641064de18ba7a25dee8f96403ebc39113d0cb953a01429249d5c7564666a43
 about:
-  home: ""
+  home: https://github.com/annotated-types/annotated-types
   PyPI: https://pypi.org/project/annotated-types
   summary: Reusable constraint types to use with typing.Annotated
-  license: ""
+  license: MIT
diff --git a/packages/astropy/meta.yaml b/packages/astropy/meta.yaml
index ddfc50b8480..3f9cb905d95 100644
--- a/packages/astropy/meta.yaml
+++ b/packages/astropy/meta.yaml
@@ -49,7 +49,7 @@ about:
   home: http://astropy.org
   PyPI: https://pypi.org/project/astropy
   summary: Astronomy and astrophysics core library
-  license: BSD 3-Clause License
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - jobovy
diff --git a/packages/astropy_iers_data/meta.yaml b/packages/astropy_iers_data/meta.yaml
index 4a93bddaeca..7d51a661a49 100644
--- a/packages/astropy_iers_data/meta.yaml
+++ b/packages/astropy_iers_data/meta.yaml
@@ -10,23 +10,4 @@ about:
   home: ""
   PyPI: https://pypi.org/project/astropy_iers_data
   summary: IERS Earth Rotation and Leap Second tables for the astropy core package
-  license:
-    'Copyright (c) 2023, Astropy Developers  All rights reserved.  Redistribution
-    and use in source and binary forms, with or without modification, are permitted
-    provided that the following conditions are met:  * Redistributions of source code
-    must retain the above copyright notice, this list of conditions and the following
-    disclaimer. * Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the documentation
-    and/or other materials provided with the distribution. * Neither the name of the
-    Astropy Team nor the names of its contributors may be used to endorse or promote
-    products derived from this software without specific prior written permission.  THIS
-    SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
-    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-    EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-    TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-    OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-    IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
-    IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
-    OF SUCH DAMAGE. '
+  license: BSD-3-Clause
diff --git a/packages/asttokens/meta.yaml b/packages/asttokens/meta.yaml
index fcefde3dddf..2a58dedc414 100644
--- a/packages/asttokens/meta.yaml
+++ b/packages/asttokens/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/gristlabs/asttokens
   PyPI: https://pypi.org/project/asttokens
   summary: Annotate AST trees with source code positions
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/async-timeout/meta.yaml b/packages/async-timeout/meta.yaml
index b01e1daea26..84a9a3e54a6 100644
--- a/packages/async-timeout/meta.yaml
+++ b/packages/async-timeout/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/aio-libs/async-timeout
   PyPI: https://pypi.org/project/async-timeout
   summary: Timeout context manager for asyncio programs
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/b2d/meta.yaml b/packages/b2d/meta.yaml
index 2d54a36fc0c..ddaf368cbbb 100644
--- a/packages/b2d/meta.yaml
+++ b/packages/b2d/meta.yaml
@@ -19,6 +19,9 @@ test:
   imports:
     - b2d
     - b2d.testbed
+about:
+  home: https://github.com/pyb2d/pyb2d
+  license: MIT
 extra:
   recipe-maintainers:
     - DerThorsten
diff --git a/packages/bcrypt/meta.yaml b/packages/bcrypt/meta.yaml
index 91af04f5807..80956864de6 100644
--- a/packages/bcrypt/meta.yaml
+++ b/packages/bcrypt/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/pyca/bcrypt/
   PyPI: https://pypi.org/project/bcrypt
   summary: Modern password hashing for your software and your servers
-  license: Apache License, Version 2.0
+  license: Apache-2.0
diff --git a/packages/biopython/meta.yaml b/packages/biopython/meta.yaml
index d8020a44d9e..b78236a9e29 100644
--- a/packages/biopython/meta.yaml
+++ b/packages/biopython/meta.yaml
@@ -16,3 +16,4 @@ about:
   home: https://biopython.org/
   PyPI: https://pypi.org/project/biopython
   summary: Freely available tools for computational molecular biology.
+  license: Biopython
diff --git a/packages/bitstring/meta.yaml b/packages/bitstring/meta.yaml
index 2acde68484a..fc0d97d3af4 100644
--- a/packages/bitstring/meta.yaml
+++ b/packages/bitstring/meta.yaml
@@ -10,7 +10,7 @@ requirements:
   run:
     - bitarray
 about:
-  home: ""
+  home: https://github.com/scott-griffiths/bitstring
   PyPI: https://pypi.org/project/bitstring
   summary: Simple construction, analysis and modification of binary data.
-  license: ""
+  license: MIT
diff --git a/packages/bleach/meta.yaml b/packages/bleach/meta.yaml
index c107ccf395c..72b5f32cac6 100644
--- a/packages/bleach/meta.yaml
+++ b/packages/bleach/meta.yaml
@@ -15,4 +15,4 @@ about:
   home: https://github.com/mozilla/bleach
   PyPI: https://pypi.org/project/bleach
   summary: An easy safelist-based HTML-sanitizing tool.
-  license: Apache Software License
+  license: Apache-2.0
diff --git a/packages/boost-cpp/meta.yaml b/packages/boost-cpp/meta.yaml
index 63c776dc4c5..407062be8f8 100644
--- a/packages/boost-cpp/meta.yaml
+++ b/packages/boost-cpp/meta.yaml
@@ -30,6 +30,7 @@ build:
 about:
   home: https://www.boost.org/
   summary: Free peer-reviewed portable C++ source libraries.
+  license: Boost
 extra:
   recipe-maintainers:
     - johnwason
diff --git a/packages/casadi/meta.yaml b/packages/casadi/meta.yaml
index 1808d7ed2b8..06f8de6b3a7 100644
--- a/packages/casadi/meta.yaml
+++ b/packages/casadi/meta.yaml
@@ -21,7 +21,7 @@ about:
   home: http://casadi.org
   PyPI: https://pypi.org/project/casadi
   summary: CasADi -- framework for algorithmic differentiation and numeric optimization
-  license: GNU Lesser General Public License v3 or later (LGPLv3+)
+  license: LGPL-3.0+
 extra:
   recipe-maintainers:
     - agriyakhetarpal
diff --git a/packages/cbor-diag/meta.yaml b/packages/cbor-diag/meta.yaml
index 327cb8fcc62..a80c3a80c14 100644
--- a/packages/cbor-diag/meta.yaml
+++ b/packages/cbor-diag/meta.yaml
@@ -16,4 +16,4 @@ about:
   home: https://github.com/chrysn/cbor-diag-py
   PyPI: https://pypi.org/project/cbor-diag/
   summary: Conversion between CBOR and CBOR Diagnostic Notation
-  license: MIT OR Apache-2.0
+  license: Apache-2.0 OR MIT
diff --git a/packages/certifi/meta.yaml b/packages/certifi/meta.yaml
index 02347b28d7c..eec662cab52 100644
--- a/packages/certifi/meta.yaml
+++ b/packages/certifi/meta.yaml
@@ -13,4 +13,4 @@ about:
     Certifi provides Mozilla’s carefully curated collection of Root Certificates
     for validating the trustworthiness of SSL certificates while verifying the identity
     of TLS hosts.
-  license: "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)"
+  license: MPL-2.0
diff --git a/packages/cffi_example/meta.yaml b/packages/cffi_example/meta.yaml
index bcafb9f4699..11fa800eedc 100644
--- a/packages/cffi_example/meta.yaml
+++ b/packages/cffi_example/meta.yaml
@@ -11,3 +11,6 @@ requirements:
 source:
   url: https://github.com/wolever/python-cffi-example/archive/ec14da61ee0de770750ff3781b412a3b25f020eb.zip
   sha256: 4d7844ff45e5e870dc7996b4cc61636eabd33c32cc8663cf2cd21e3f4f893abc
+about:
+  home: https://github.com/wolever/python-cffi-example
+  license: BSD-2-Clause
diff --git a/packages/cftime/meta.yaml b/packages/cftime/meta.yaml
index 7468dd5fe8e..ccc295522fa 100644
--- a/packages/cftime/meta.yaml
+++ b/packages/cftime/meta.yaml
@@ -17,4 +17,4 @@ about:
   home: https://github.com/Unidata/cftime
   PyPI: https://pypi.org/project/cftime
   summary: Time-handling functionality from netcdf4-python
-  license: "License :: OSI Approved :: MIT License"
+  license: MIT
diff --git a/packages/cligj/meta.yaml b/packages/cligj/meta.yaml
index f456a21018f..f77dd33b36b 100644
--- a/packages/cligj/meta.yaml
+++ b/packages/cligj/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://github.com/mapbox/cligj
   PyPI: https://pypi.org/project/cligj
   summary: Click params for command line interfaces to GeoJSON
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/cloudpickle/meta.yaml b/packages/cloudpickle/meta.yaml
index c25a7f1bba7..d202fdb98a4 100644
--- a/packages/cloudpickle/meta.yaml
+++ b/packages/cloudpickle/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/cloudpipe/cloudpickle
   PyPI: https://pypi.org/project/cloudpickle
   summary: Extended pickling support for Python objects
-  license: BSD 3-Clause License
+  license: BSD-3-Clause
diff --git a/packages/cmyt/meta.yaml b/packages/cmyt/meta.yaml
index 336f0a82a6a..944e2669242 100644
--- a/packages/cmyt/meta.yaml
+++ b/packages/cmyt/meta.yaml
@@ -16,4 +16,4 @@ about:
   home: https://github.com/yt-project/yt
   PyPI: https://pypi.org/project/cmyt
   summary: A collection of Matplotlib colormaps from the yt project
-  license: BSD 3-Clause
+  license: BSD-3-Clause
diff --git a/packages/coverage/meta.yaml b/packages/coverage/meta.yaml
index c4a6cd362c4..251c798c304 100644
--- a/packages/coverage/meta.yaml
+++ b/packages/coverage/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/nedbat/coveragepy
   PyPI: https://pypi.org/project/coverage
   summary: Code coverage measurement for Python
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/cpp-exceptions-test/meta.yaml b/packages/cpp-exceptions-test/meta.yaml
index 0b1725b3acd..04afb8cd6d3 100644
--- a/packages/cpp-exceptions-test/meta.yaml
+++ b/packages/cpp-exceptions-test/meta.yaml
@@ -14,3 +14,5 @@ build:
     em++ ${SIDE_MODULE_CFLAGS} -fexceptions -I${PYTHONINCLUDE} -flto -fno-lto -std=c++20 -c catch.cpp -o catch.o -mreference-types
     em++ ${SIDE_MODULE_LDFLAGS} -fexceptions  -o ${DISTDIR}/cpp-exceptions-test-throw.so throw.o
     em++ ${SIDE_MODULE_LDFLAGS} -fexceptions  -o ${DISTDIR}/cpp-exceptions-test-catch.so catch.o
+about:
+  license: MPL-2.0
diff --git a/packages/cpp-exceptions-test2/meta.yaml b/packages/cpp-exceptions-test2/meta.yaml
index 01810e79c00..e141c73077a 100644
--- a/packages/cpp-exceptions-test2/meta.yaml
+++ b/packages/cpp-exceptions-test2/meta.yaml
@@ -9,3 +9,5 @@ source:
 build:
   cxxflags: -fexceptions
   ldflags: -fexceptions
+about:
+  license: MPL-2.0
diff --git a/packages/crc32c/meta.yaml b/packages/crc32c/meta.yaml
index 2619d7774e0..02a1483f756 100644
--- a/packages/crc32c/meta.yaml
+++ b/packages/crc32c/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: https://github.com/ICRAR/crc32c
   PyPI: https://pypi.org/project/crc32c
   summary: A python package implementing the crc32c algorithm in hardware and software
-  license: LGPL-2.1-or-later
+  license: LGPL-2.1+
 extra:
   recipe-maintainers:
     - agriyakhetarpal
diff --git a/packages/cssselect/meta.yaml b/packages/cssselect/meta.yaml
index 690e19388f2..b58bb3964a2 100644
--- a/packages/cssselect/meta.yaml
+++ b/packages/cssselect/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/scrapy/cssselect
   PyPI: https://pypi.org/project/cssselect
   summary: cssselect parses CSS3 Selectors and translates them to XPath 1.0
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/cvxpy-base/meta.yaml b/packages/cvxpy-base/meta.yaml
index cc23d9e04af..f0980456390 100644
--- a/packages/cvxpy-base/meta.yaml
+++ b/packages/cvxpy-base/meta.yaml
@@ -18,7 +18,7 @@ about:
   summary:
     A domain-specific language for modeling convex optimization problems in
     Python.
-  license: Apache License, Version 2.0
+  license: Apache-2.0
 extra:
   recipe-maintainers:
     - phschiele
diff --git a/packages/cycler/meta.yaml b/packages/cycler/meta.yaml
index 194d1e76ea5..0ba42c334f2 100644
--- a/packages/cycler/meta.yaml
+++ b/packages/cycler/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/matplotlib/cycler
   PyPI: https://pypi.org/project/cycler
   summary: Composable style cycles
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/cysignals/meta.yaml b/packages/cysignals/meta.yaml
index 1f4060bd6e2..01ba71a6616 100644
--- a/packages/cysignals/meta.yaml
+++ b/packages/cysignals/meta.yaml
@@ -13,7 +13,7 @@ about:
   home: https://github.com/sagemath/cysignals
   PyPI: https://pypi.org/project/cysignals
   summary: Interrupt and signal handling for Cython
-  license: LGPL v3
+  license: LGPL-3.0
 extra:
   recipe-maintainers:
     - mkoeppe
diff --git a/packages/cytoolz/meta.yaml b/packages/cytoolz/meta.yaml
index 4f3b23402ec..5ddd5a4d99e 100644
--- a/packages/cytoolz/meta.yaml
+++ b/packages/cytoolz/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/pytoolz/cytoolz
   PyPI: https://pypi.org/project/cytoolz
   summary: "Cython implementation of Toolz: High performance functional utilities"
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/decorator/meta.yaml b/packages/decorator/meta.yaml
index 6c387394ee9..f0c41e27996 100644
--- a/packages/decorator/meta.yaml
+++ b/packages/decorator/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/micheles/decorator
   PyPI: https://pypi.org/project/decorator
   summary: Decorators for Humans
-  license: new BSD License
+  license: BSD-3-Clause
diff --git a/packages/deprecation/meta.yaml b/packages/deprecation/meta.yaml
index e5e7b63cdb3..80ae4e4e24a 100644
--- a/packages/deprecation/meta.yaml
+++ b/packages/deprecation/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: http://deprecation.readthedocs.io/
   PyPI: https://pypi.org/project/deprecation
   summary: A library to handle automated deprecations
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/docutils/meta.yaml b/packages/docutils/meta.yaml
index 4cfebdd0bea..8cd448fe500 100644
--- a/packages/docutils/meta.yaml
+++ b/packages/docutils/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://docutils.sourceforge.io/
   PyPI: https://pypi.org/project/docutils
   summary: Docutils -- Python Documentation Utilities
-  license: public domain, Python, 2-Clause BSD, GPL 3 (see COPYING.txt)
+  license: Mixed public domain, Python, BSD-2-Clause, GPL-3.0 (see COPYING.txt)
diff --git a/packages/ewah_bool_utils/meta.yaml b/packages/ewah_bool_utils/meta.yaml
index 38c99c10e28..8bcd0432d0f 100644
--- a/packages/ewah_bool_utils/meta.yaml
+++ b/packages/ewah_bool_utils/meta.yaml
@@ -10,7 +10,7 @@ requirements:
   host:
     - numpy
 about:
-  home: ""
+  home: https://github.com/yt-project/ewah_bool_utils
   PyPI: https://pypi.org/project/ewah_bool_utils
   summary: EWAH Bool Array utils for yt
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/fastparquet/meta.yaml b/packages/fastparquet/meta.yaml
index 6256b9b996e..41ab881df90 100644
--- a/packages/fastparquet/meta.yaml
+++ b/packages/fastparquet/meta.yaml
@@ -17,7 +17,7 @@ about:
   home: https://github.com/dask/fastparquet/
   PyPI: https://pypi.org/project/fastparquet
   summary: Python support for Parquet file format
-  license: Apache License 2.0
+  license: Apache-2.0
 extra:
   recipe-maintainers:
     - joemarshall
diff --git a/packages/ffmpeg/meta.yaml b/packages/ffmpeg/meta.yaml
index 2e8df09c3d6..5a217b01379 100644
--- a/packages/ffmpeg/meta.yaml
+++ b/packages/ffmpeg/meta.yaml
@@ -25,3 +25,6 @@ build:
 
     emmake make -j${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://ffmpeg.org/
+  license: LGPL-2.1+
diff --git a/packages/fiona/meta.yaml b/packages/fiona/meta.yaml
index f0a4707f4ff..290fd9eead3 100644
--- a/packages/fiona/meta.yaml
+++ b/packages/fiona/meta.yaml
@@ -45,5 +45,5 @@ about:
   home: http://github.com/Toblerity/Fiona
   PyPI: https://pypi.org/project/fiona
   summary: Fiona reads and writes spatial data files
-  license: BSD
+  license: BSD-3-Clause
 # Note: this package needs to be manually upgraded to the next version
diff --git a/packages/flint/meta.yaml b/packages/flint/meta.yaml
index aae84388ca9..7f425e35a55 100644
--- a/packages/flint/meta.yaml
+++ b/packages/flint/meta.yaml
@@ -25,3 +25,6 @@ build:
         --with-mpfr=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://flintlib.org/
+  license: GPL-3.0 OR LGPL-3.0
diff --git a/packages/fpcast-test/meta.yaml b/packages/fpcast-test/meta.yaml
index 0f2c6a559df..93f2c5404f9 100644
--- a/packages/fpcast-test/meta.yaml
+++ b/packages/fpcast-test/meta.yaml
@@ -8,3 +8,5 @@ package:
     - fpcast_test
 source:
   path: fpcast-test
+about:
+  license: MPL-2.0
diff --git a/packages/frozenlist/meta.yaml b/packages/frozenlist/meta.yaml
index 92de0a209c4..9276a8157d1 100644
--- a/packages/frozenlist/meta.yaml
+++ b/packages/frozenlist/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/aio-libs/frozenlist
   PyPI: https://pypi.org/project/frozenlist
   summary: A list-like structure which implements collections.abc.MutableSequence
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/fsspec/meta.yaml b/packages/fsspec/meta.yaml
index 4cb394a1e90..2104987b0ff 100644
--- a/packages/fsspec/meta.yaml
+++ b/packages/fsspec/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: http://github.com/fsspec/filesystem_spec
   PyPI: https://pypi.org/project/fsspec
   summary: File-system specification
-  license: BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - joemarshall
diff --git a/packages/galpy/meta.yaml b/packages/galpy/meta.yaml
index a616ebce310..59018249511 100644
--- a/packages/galpy/meta.yaml
+++ b/packages/galpy/meta.yaml
@@ -39,7 +39,7 @@ about:
   home: http://github.com/jobovy/galpy
   PyPI: https://pypi.org/project/galpy
   summary: Galactic Dynamics in python
-  license: New BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - jobovy
diff --git a/packages/gdal/meta.yaml b/packages/gdal/meta.yaml
index 590360cae8b..9b8a0c01c55 100644
--- a/packages/gdal/meta.yaml
+++ b/packages/gdal/meta.yaml
@@ -108,6 +108,9 @@ build:
     cp ${WASM_LIBRARY_DIR}/lib/libgdal.so ${DISTDIR}
 
 # Note: this package needs to be manually upgraded to the next version
+about:
+  home: https://gdal.org/
+  license: MIT
 extra:
   recipe-maintainers:
     - jobovy
diff --git a/packages/gensim/meta.yaml b/packages/gensim/meta.yaml
index 581b5df158a..8634f432bf1 100644
--- a/packages/gensim/meta.yaml
+++ b/packages/gensim/meta.yaml
@@ -23,4 +23,4 @@ about:
   home: http://radimrehurek.com/gensim
   PyPI: https://pypi.org/project/gensim
   summary: Python framework for fast Vector Space Modelling
-  license: LGPL-2.1-only
+  license: LGPL-2.1
diff --git a/packages/geopandas/meta.yaml b/packages/geopandas/meta.yaml
index a7465c1b181..f98e73edb31 100644
--- a/packages/geopandas/meta.yaml
+++ b/packages/geopandas/meta.yaml
@@ -18,4 +18,4 @@ about:
   home: http://geopandas.org
   PyPI: https://pypi.org/project/geopandas
   summary: Geographic pandas extensions
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/geos/meta.yaml b/packages/geos/meta.yaml
index 77d763dcba3..73a0ad44acf 100644
--- a/packages/geos/meta.yaml
+++ b/packages/geos/meta.yaml
@@ -26,3 +26,6 @@ build:
 
     mkdir -p dist
     cp ${WASM_LIBRARY_DIR}/lib/libgeos* dist/
+about:
+  home: https://libgeos.org/
+  license: LGPL-2.1
diff --git a/packages/glpk/meta.yaml b/packages/glpk/meta.yaml
index ea19dfc22fe..f2b567151fc 100644
--- a/packages/glpk/meta.yaml
+++ b/packages/glpk/meta.yaml
@@ -17,3 +17,6 @@ build:
       --enable-static
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://www.gnu.org/software/glpk/
+  license: GPL-3.0
diff --git a/packages/gsw/meta.yaml b/packages/gsw/meta.yaml
index d3b94e13055..0d12fb11837 100644
--- a/packages/gsw/meta.yaml
+++ b/packages/gsw/meta.yaml
@@ -17,4 +17,4 @@ about:
   home: https://github.com/TEOS-10/GSW-python
   PyPI: https://pypi.org/project/gsw
   summary: Gibbs Seawater Oceanographic Package of TEOS-10
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/hashlib/meta.yaml b/packages/hashlib/meta.yaml
index a4b597b74d5..855a196bff1 100644
--- a/packages/hashlib/meta.yaml
+++ b/packages/hashlib/meta.yaml
@@ -27,3 +27,5 @@ requirements:
     - openssl
   host:
     - openssl
+about:
+  license: PSF
diff --git a/packages/html5lib/meta.yaml b/packages/html5lib/meta.yaml
index c67d8c1fffa..d8932bc2316 100644
--- a/packages/html5lib/meta.yaml
+++ b/packages/html5lib/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://github.com/html5lib/html5lib-python
   PyPI: https://pypi.org/project/html5lib
   summary: HTML parser based on the WHATWG HTML specification
-  license: MIT License
+  license: MIT
diff --git a/packages/idna/meta.yaml b/packages/idna/meta.yaml
index 89db1fae2e1..cbdb6199b38 100644
--- a/packages/idna/meta.yaml
+++ b/packages/idna/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/kjd/idna
   PyPI: https://pypi.org/project/idna
   summary: Internationalized Domain Names in Applications (IDNA)
-  license: BSD-3-Clause license
+  license: BSD-3-Clause
diff --git a/packages/igraph/meta.yaml b/packages/igraph/meta.yaml
index a14b79f39b9..89808047e41 100644
--- a/packages/igraph/meta.yaml
+++ b/packages/igraph/meta.yaml
@@ -24,7 +24,7 @@ about:
   home: https://igraph.org/python
   PyPI: https://pypi.org/project/igraph
   summary: High performance graph data structures and algorithms
-  license: GNU General Public License (GPL)
+  license: GPL-2.0
 extra:
   recipe-maintainers:
     - ntamas
diff --git a/packages/iminuit/meta.yaml b/packages/iminuit/meta.yaml
index c7b69b9f81b..ad175b36d50 100644
--- a/packages/iminuit/meta.yaml
+++ b/packages/iminuit/meta.yaml
@@ -14,7 +14,7 @@ about:
   home: http://github.com/scikit-hep/iminuit
   PyPI: https://pypi.org/project/iminuit
   summary: Jupyter-friendly Python frontend for MINUIT2 in C++
-  license: MIT+LGPL
+  license: Mixed MIT, LGPL-2.0
 extra:
   recipe-maintainers:
     - henryiii
diff --git a/packages/iniconfig/meta.yaml b/packages/iniconfig/meta.yaml
index 19bef97f1e1..df5819e3434 100644
--- a/packages/iniconfig/meta.yaml
+++ b/packages/iniconfig/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: http://github.com/RonnyPfannschmidt/iniconfig
   PyPI: https://pypi.org/project/iniconfig
   summary: "iniconfig: brain-dead simple config-ini parsing"
-  license: MIT License
+  license: MIT
diff --git a/packages/joblib/meta.yaml b/packages/joblib/meta.yaml
index 5f6bebc54b6..c7026082902 100644
--- a/packages/joblib/meta.yaml
+++ b/packages/joblib/meta.yaml
@@ -11,4 +11,4 @@ about:
   home: https://joblib.readthedocs.io
   PyPI: https://pypi.org/project/joblib
   summary: Lightweight pipelining with Python functions
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/kiwisolver/meta.yaml b/packages/kiwisolver/meta.yaml
index f05036af73f..782238381f2 100644
--- a/packages/kiwisolver/meta.yaml
+++ b/packages/kiwisolver/meta.yaml
@@ -6,3 +6,6 @@ package:
 source:
   sha256: e57e563a57fb22a142da34f38acc2fc1a5c864bc29ca1517a88abc963e60d6ec
   url: https://files.pythonhosted.org/packages/b9/2d/226779e405724344fc678fcc025b812587617ea1a48b9442628b688e85ea/kiwisolver-1.4.5.tar.gz
+about:
+  home: https://github.com/nucleic/kiwi
+  license: BSD-3-Clause
diff --git a/packages/lazy_loader/meta.yaml b/packages/lazy_loader/meta.yaml
index 1d286b8aea3..74cd1593777 100644
--- a/packages/lazy_loader/meta.yaml
+++ b/packages/lazy_loader/meta.yaml
@@ -7,6 +7,7 @@ source:
   url: https://files.pythonhosted.org/packages/83/60/d497a310bde3f01cb805196ac61b7ad6dc5dcf8dce66634dc34364b20b4f/lazy_loader-0.4-py3-none-any.whl
   sha256: 342aa8e14d543a154047afb4ba8ef17f5563baad3fc610d7b15b213b0f119efc
 about:
+  home: https://scientific-python.org/specs/spec-0001/
   PyPI: https://pypi.org/project/lazy_loader
   summary: lazy_loader
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/libcst/meta.yaml b/packages/libcst/meta.yaml
index ba6486356db..08830f83f60 100644
--- a/packages/libcst/meta.yaml
+++ b/packages/libcst/meta.yaml
@@ -12,12 +12,7 @@ about:
   summary:
     A concrete syntax tree with AST-like properties for Python 3.0 through
     3.12 programs.
-  license:
-    All contributions towards LibCST are MIT licensed.  Some Python files have
-    been derived from the standard library and are therefore PSF licensed. Modifications
-    on these files are dual licensed (both MIT and PSF). Some Python files have been
-    taken from dataclasses and are therefore Apache licensed. Modifications on these
-    files are licensed under Apache 2.0 license.
+  license: Mixed, MIT, PSF, and Apache-2.0
 extra:
   recipe-maintainers:
     - zsol
diff --git a/packages/libde265/meta.yaml b/packages/libde265/meta.yaml
index 629a5c7a1dc..395ecc0f1dc 100644
--- a/packages/libde265/meta.yaml
+++ b/packages/libde265/meta.yaml
@@ -23,3 +23,6 @@ build:
 
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://github.com/strukturag/libde265
+  license: LGPL-3.0
diff --git a/packages/libf2c/meta.yaml b/packages/libf2c/meta.yaml
index 0ae23ca169e..45858b5aef2 100644
--- a/packages/libf2c/meta.yaml
+++ b/packages/libf2c/meta.yaml
@@ -41,3 +41,6 @@ build:
     mkdir -p ${WASM_LIBRARY_DIR}/{lib,include}
     cp INCLUDE/f2c.h ${WASM_LIBRARY_DIR}/include
     cp F2CLIBS/libf2c.a ${WASM_LIBRARY_DIR}/lib
+about:
+  home: https://www.netlib.org/clapack/
+  license: BSD-3-Clause
diff --git a/packages/libgmp/meta.yaml b/packages/libgmp/meta.yaml
index 8e20ea93301..a6cb0cdcb62 100644
--- a/packages/libgmp/meta.yaml
+++ b/packages/libgmp/meta.yaml
@@ -20,3 +20,6 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://gmplib.org/
+  license: GPL-2.0 OR LGPL-3.0
diff --git a/packages/libgsl/meta.yaml b/packages/libgsl/meta.yaml
index 755f16b6c1b..35952c23b2f 100644
--- a/packages/libgsl/meta.yaml
+++ b/packages/libgsl/meta.yaml
@@ -16,3 +16,6 @@ build:
         --disable-shared
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://www.gnu.org/software/gsl/
+  license: GPL-3.0
diff --git a/packages/libhdf5/meta.yaml b/packages/libhdf5/meta.yaml
index 0bdbf22396a..5b8f87c6291 100644
--- a/packages/libhdf5/meta.yaml
+++ b/packages/libhdf5/meta.yaml
@@ -51,3 +51,6 @@ build:
     emmake make -j ${PYODIDE_JOBS:-3} install
 
     cp -P ${WASM_LIBRARY_DIR}/lib/libhdf* ${DISTDIR}
+about:
+  home: https://github.com/HDFGroup/hdf5
+  license: BSD-3-Clause
diff --git a/packages/libheif/meta.yaml b/packages/libheif/meta.yaml
index 138b81731dd..906ccd5339e 100644
--- a/packages/libheif/meta.yaml
+++ b/packages/libheif/meta.yaml
@@ -29,3 +29,6 @@ build:
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
     cp ${WASM_LIBRARY_DIR}/lib/libheif.so ${DISTDIR}
+about:
+  home: https://github.com/strukturag/libheif
+  license: LGPL-3.0
diff --git a/packages/libiconv/meta.yaml b/packages/libiconv/meta.yaml
index 0eed91d7fbe..b319c13cf26 100644
--- a/packages/libiconv/meta.yaml
+++ b/packages/libiconv/meta.yaml
@@ -18,3 +18,6 @@ build:
 
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://www.gnu.org/software/libiconv/
+  license: LGPL-2.1
diff --git a/packages/liblzma/meta.yaml b/packages/liblzma/meta.yaml
index 785fb3a1ffa..8bb887091f7 100644
--- a/packages/liblzma/meta.yaml
+++ b/packages/liblzma/meta.yaml
@@ -25,3 +25,6 @@ build:
 
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://github.com/tukaani-project/xz
+  license: BSD-0-Clause
diff --git a/packages/libmagic/meta.yaml b/packages/libmagic/meta.yaml
index 9b7e44a8464..4740f44a9f8 100644
--- a/packages/libmagic/meta.yaml
+++ b/packages/libmagic/meta.yaml
@@ -25,3 +25,6 @@ build:
     emmake make -j ${PYODIDE_JOBS:-3} libmagic.la \
       LDFLAGS="-avoid-version -Xcompiler '${SIDE_MODULE_LDFLAGS}'"
     cp .libs/libmagic.so ${DISTDIR}/libmagic.so
+about:
+  home: https://www.darwinsys.com/file/
+  license: BSD-2-Clause
diff --git a/packages/libmpc/meta.yaml b/packages/libmpc/meta.yaml
index d123014a797..12ce61bfaaf 100644
--- a/packages/libmpc/meta.yaml
+++ b/packages/libmpc/meta.yaml
@@ -23,3 +23,6 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://gitlab.inria.fr/mpc/mpc
+  license: MIT
diff --git a/packages/libmpfr/meta.yaml b/packages/libmpfr/meta.yaml
index 8dc06cb0b57..4ffc50797af 100644
--- a/packages/libmpfr/meta.yaml
+++ b/packages/libmpfr/meta.yaml
@@ -22,3 +22,6 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://www.mpfr.org/
+  license: LGPL-3.0+
diff --git a/packages/libnetcdf/meta.yaml b/packages/libnetcdf/meta.yaml
index 189f28fc83d..8fa55f54298 100644
--- a/packages/libnetcdf/meta.yaml
+++ b/packages/libnetcdf/meta.yaml
@@ -45,3 +45,6 @@ build:
     emmake make -j ${PYODIDE_JOBS:-3} install
 
     cp -P ${WASM_LIBRARY_DIR}/lib/libnetcdf* ${DISTDIR}
+about:
+  home: https://github.com/Unidata/netcdf-c
+  license: BSD-3-Clause
diff --git a/packages/libproj/meta.yaml b/packages/libproj/meta.yaml
index 6e5e6c66d62..0a80251025e 100644
--- a/packages/libproj/meta.yaml
+++ b/packages/libproj/meta.yaml
@@ -36,3 +36,6 @@ build:
         -DCMAKE_C_FLAGS="-fPIC" \
         -DCMAKE_CXX_FLAGS="-fPIC";
     emmake make -j ${PYODIDE_JOBS:-3} install;
+about:
+  home: https://proj.org/en/9.5/
+  license: MIT
diff --git a/packages/libtiff/meta.yaml b/packages/libtiff/meta.yaml
index bb1cb4dac60..6c738be7973 100644
--- a/packages/libtiff/meta.yaml
+++ b/packages/libtiff/meta.yaml
@@ -19,3 +19,24 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://gitlab.com/libtiff/libtiff
+  license: >
+    Permission to use, copy, modify, distribute, and sell this software and its
+    documentation for any purpose is hereby granted without fee, provided that
+    (i) the above copyright notices and this permission notice appear in all
+    copies of the software and related documentation, and (ii) the names of Sam
+    Leffler and Silicon Graphics may not be used in any advertising or publicity
+    relating to the software without the specific, prior written permission of
+    Sam Leffler and Silicon Graphics.
+
+    THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS,
+    IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
+    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+
+    IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR ANY SPECIAL,
+    INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT
+    ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY,
+    ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+    SOFTWARE.
diff --git a/packages/libwebp/meta.yaml b/packages/libwebp/meta.yaml
index 1d141b64a64..4517b2c443b 100644
--- a/packages/libwebp/meta.yaml
+++ b/packages/libwebp/meta.yaml
@@ -26,3 +26,6 @@ build:
       ../
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://chromium.googlesource.com/webm/libwebp
+  license: BSD-3-Clause
diff --git a/packages/libxml/meta.yaml b/packages/libxml/meta.yaml
index 5005f6f79e5..7a749c3d824 100644
--- a/packages/libxml/meta.yaml
+++ b/packages/libxml/meta.yaml
@@ -26,3 +26,6 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://github.com/GNOME/libxml2
+  license: MIT
diff --git a/packages/libxslt/meta.yaml b/packages/libxslt/meta.yaml
index 96c175f3cff..6b5ccded197 100644
--- a/packages/libxslt/meta.yaml
+++ b/packages/libxslt/meta.yaml
@@ -26,3 +26,6 @@ build:
 
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  home: https://github.com/GNOME/libxslt
+  license: MIT
diff --git a/packages/libyaml/meta.yaml b/packages/libyaml/meta.yaml
index 9273f269d91..f088e49c779 100644
--- a/packages/libyaml/meta.yaml
+++ b/packages/libyaml/meta.yaml
@@ -20,3 +20,6 @@ build:
     emmake make install
     rm -f ${INSTALL_DIR}/lib/libyaml.a
     ln -s ${INSTALL_DIR}/lib/libyaml_static.a ${INSTALL_DIR}/lib/libyaml.a
+about:
+  home: https://pyyaml.org/wiki/LibYAML
+  license: MIT
diff --git a/packages/lightgbm/meta.yaml b/packages/lightgbm/meta.yaml
index 378dc935849..98cccc4fed7 100644
--- a/packages/lightgbm/meta.yaml
+++ b/packages/lightgbm/meta.yaml
@@ -19,4 +19,4 @@ about:
   home: https://github.com/microsoft/LightGBM
   PyPI: https://pypi.org/project/lightgbm
   summary: LightGBM Python Package
-  license: The MIT License (Microsoft)
+  license: MIT
diff --git a/packages/logbook/meta.yaml b/packages/logbook/meta.yaml
index 751ee6c47dd..d30935b1b2c 100644
--- a/packages/logbook/meta.yaml
+++ b/packages/logbook/meta.yaml
@@ -16,4 +16,4 @@ about:
   home: http://logbook.pocoo.org/
   PyPI: https://pypi.org/project/logbook
   summary: A logging replacement for Python
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/lxml/meta.yaml b/packages/lxml/meta.yaml
index 2bad9f87090..38dd430f105 100644
--- a/packages/lxml/meta.yaml
+++ b/packages/lxml/meta.yaml
@@ -26,4 +26,4 @@ about:
   summary:
     Powerful and Pythonic XML processing library combining libxml2/libxslt
     with the ElementTree API.
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/lzma/meta.yaml b/packages/lzma/meta.yaml
index efa744aee87..5a3bb7b48b8 100644
--- a/packages/lzma/meta.yaml
+++ b/packages/lzma/meta.yaml
@@ -27,3 +27,5 @@ build:
 requirements:
   host:
     - liblzma
+about:
+  license: PSF
diff --git a/packages/matplotlib-inline/meta.yaml b/packages/matplotlib-inline/meta.yaml
index 5949434a7fb..a3c7c566523 100644
--- a/packages/matplotlib-inline/meta.yaml
+++ b/packages/matplotlib-inline/meta.yaml
@@ -11,7 +11,7 @@ about:
   home: https://github.com/ipython/matplotlib-inline
   PyPI: https://pypi.org/project/matplotlib-inline
   summary: Inline Matplotlib backend for Jupyter
-  license: BSD 3-Clause
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - mhochsteger
diff --git a/packages/matplotlib-pyodide/meta.yaml b/packages/matplotlib-pyodide/meta.yaml
index 206c0f51cdc..1107c707371 100644
--- a/packages/matplotlib-pyodide/meta.yaml
+++ b/packages/matplotlib-pyodide/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/pyodide/matplotlib-pyodide
   PyPI: https://pypi.org/project/matplotlib-pyodide
   summary: HTML5 backends for Matplotlib compatible with Pyodide
-  license: MPL2
+  license: MPL-2.0
diff --git a/packages/memory-allocator/meta.yaml b/packages/memory-allocator/meta.yaml
index 74ee2640790..1e86a57869f 100644
--- a/packages/memory-allocator/meta.yaml
+++ b/packages/memory-allocator/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: https://github.com/sagemath/memory_allocator
   PyPI: https://pypi.org/project/memory_allocator
   summary: An extension class to allocate memory easily with cython
-  license: GPLv3
+  license: GPL-3.0
 extra:
   recipe-maintainers:
     - mkoeppe
diff --git a/packages/micropip/meta.yaml b/packages/micropip/meta.yaml
index 71a22fb90e3..65290a00caf 100644
--- a/packages/micropip/meta.yaml
+++ b/packages/micropip/meta.yaml
@@ -14,3 +14,6 @@ source:
 requirements:
   run:
     - packaging
+about:
+  home: https://github.com/pyodide/micropip
+  license: MPL-2.0
diff --git a/packages/mmh3/meta.yaml b/packages/mmh3/meta.yaml
index b129983f172..ea43e1edb5a 100644
--- a/packages/mmh3/meta.yaml
+++ b/packages/mmh3/meta.yaml
@@ -6,6 +6,7 @@ source:
   sha256: a1cf25348b9acd229dda464a094d6170f47d2850a1fcb762a3b6172d2ce6ca4a
 about:
   PyPI: https://pypi.org/project/mmh3
+  home: https://github.com/hajimes/mmh3
   summary:
     Python extension for MurmurHash (MurmurHash3), a set of fast and robust
     hash functions.
diff --git a/packages/more-itertools/meta.yaml b/packages/more-itertools/meta.yaml
index 53ba6b99d66..2302f0c1d5b 100644
--- a/packages/more-itertools/meta.yaml
+++ b/packages/more-itertools/meta.yaml
@@ -7,5 +7,7 @@ source:
   sha256: 686b06abe565edfab151cb8fd385a05651e1fdf8f0a14191e4439283421f8684
   url: https://files.pythonhosted.org/packages/50/e2/8e10e465ee3987bb7c9ab69efb91d867d93959095f4807db102d07995d94/more_itertools-10.2.0-py3-none-any.whl
 about:
+  home: https://github.com/more-itertools/more-itertools
   PyPI: https://pypi.org/project/more-itertools
   summary: More routines for operating on iterables, beyond itertools
+  license: MIT
diff --git a/packages/mpmath/meta.yaml b/packages/mpmath/meta.yaml
index 5f865f5ae5a..4def998ad29 100644
--- a/packages/mpmath/meta.yaml
+++ b/packages/mpmath/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: http://mpmath.org/
   PyPI: https://pypi.org/project/mpmath
   summary: Python library for arbitrary-precision floating-point arithmetic
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/msgpack/meta.yaml b/packages/msgpack/meta.yaml
index dc9b1d4003e..017d086aaef 100644
--- a/packages/msgpack/meta.yaml
+++ b/packages/msgpack/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://msgpack.org/
   PyPI: https://pypi.org/project/msgpack
   summary: MessagePack serializer
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/msprime/meta.yaml b/packages/msprime/meta.yaml
index 861e3e59143..ae16db491d0 100644
--- a/packages/msprime/meta.yaml
+++ b/packages/msprime/meta.yaml
@@ -30,4 +30,4 @@ about:
   summary:
     Simulate genealogical trees and genomic sequence data using population
     genetic models
-  license: GNU GPLv3+
+  license: GPL-3.0+
diff --git a/packages/multidict/meta.yaml b/packages/multidict/meta.yaml
index 543644911e9..3dc1eabc769 100644
--- a/packages/multidict/meta.yaml
+++ b/packages/multidict/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/aio-libs/multidict
   PyPI: https://pypi.org/project/multidict
   summary: multidict implementation
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/mypy/meta.yaml b/packages/mypy/meta.yaml
index ba3250f8793..a07eebf4b0b 100644
--- a/packages/mypy/meta.yaml
+++ b/packages/mypy/meta.yaml
@@ -15,4 +15,4 @@ about:
   home: http://www.mypy-lang.org/
   PyPI: https://pypi.org/project/mypy
   summary: Optional static typing for Python
-  license: MIT License
+  license: MIT
diff --git a/packages/networkx/meta.yaml b/packages/networkx/meta.yaml
index 69647260b7e..5c210a112b9 100644
--- a/packages/networkx/meta.yaml
+++ b/packages/networkx/meta.yaml
@@ -40,3 +40,6 @@ test:
     - networkx.readwrite
     - networkx.readwrite.json_graph
     - networkx.utils
+about:
+  home: https://networkx.org/
+  license: BSD-3-Clause
diff --git a/packages/newick/meta.yaml b/packages/newick/meta.yaml
index 8fce1d034e9..224ae638a1d 100644
--- a/packages/newick/meta.yaml
+++ b/packages/newick/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/dlce-eva/python-newick
   PyPI: https://pypi.org/project/newick
   summary: A python module to read and write the Newick format
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/nlopt/meta.yaml b/packages/nlopt/meta.yaml
index bf17fa8291f..d72162f87b1 100644
--- a/packages/nlopt/meta.yaml
+++ b/packages/nlopt/meta.yaml
@@ -22,3 +22,6 @@ requirements:
 
 build:
   cxxflags: -std=c++11
+about:
+  home: https://github.com/stevengj/nlopt
+  license: LGPL-2.1+
diff --git a/packages/nltk/meta.yaml b/packages/nltk/meta.yaml
index d1fd33f02da..e6558060a3c 100644
--- a/packages/nltk/meta.yaml
+++ b/packages/nltk/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://www.nltk.org/
   PyPI: https://pypi.org/project/nltk
   summary: Natural Language Toolkit
-  license: Apache License, Version 2.0
+  license: Apache-2.0
diff --git a/packages/numpy/meta.yaml b/packages/numpy/meta.yaml
index 9c3a8fee197..3c1fdf811f6 100644
--- a/packages/numpy/meta.yaml
+++ b/packages/numpy/meta.yaml
@@ -30,4 +30,4 @@ about:
   home: https://www.numpy.org
   PyPI: https://pypi.org/project/numpy
   summary: NumPy is the fundamental package for array computing with Python.
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/openblas/meta.yaml b/packages/openblas/meta.yaml
index 706f2d14099..1325649a512 100644
--- a/packages/openblas/meta.yaml
+++ b/packages/openblas/meta.yaml
@@ -42,3 +42,6 @@ build:
 requirements:
   host:
     - libf2c
+about:
+  home: https://www.openblas.net/
+  license: BSD-3-Clause
diff --git a/packages/openssl/meta.yaml b/packages/openssl/meta.yaml
index fcb51d39f4b..b20c848554e 100644
--- a/packages/openssl/meta.yaml
+++ b/packages/openssl/meta.yaml
@@ -33,3 +33,6 @@ build:
     rm -f ${WASM_LIBRARY_DIR}/lib/{libcrypto.a,libssl.a}
     cp libcrypto.so libssl.so ${WASM_LIBRARY_DIR}/lib
     cp libcrypto.so libssl.so ${DISTDIR}
+about:
+  home: https://www.openssl.org
+  license: Apache-2.0
diff --git a/packages/patsy/meta.yaml b/packages/patsy/meta.yaml
index de30624828d..479b156ba10 100644
--- a/packages/patsy/meta.yaml
+++ b/packages/patsy/meta.yaml
@@ -16,4 +16,4 @@ about:
   summary:
     A Python package for describing statistical models and for building design
     matrices.
-  license: 2-clause BSD
+  license: BSD-2-Clause
diff --git a/packages/peewee/meta.yaml b/packages/peewee/meta.yaml
index b2c01051a70..9fbe1207b0d 100644
--- a/packages/peewee/meta.yaml
+++ b/packages/peewee/meta.yaml
@@ -18,4 +18,4 @@ about:
   summary:
     Peewee is a simple and small ORM. It has few (but expressive) concepts,
     making it easy to learn and intuitive to use.
-  license: MIT License
+  license: MIT
diff --git a/packages/pillow_heif/meta.yaml b/packages/pillow_heif/meta.yaml
index 8dc1904356d..ec1d9011537 100644
--- a/packages/pillow_heif/meta.yaml
+++ b/packages/pillow_heif/meta.yaml
@@ -25,5 +25,5 @@ about:
   home: https://github.com/bigcat88/pillow_heif
   PyPI: https://pypi.org/project/pillow_heif
   summary: Python 3.6+ interface to libheif library
-  license: LGPLv2.1
+  license: LGPL-2.1
 # Note: this package needs to be manually upgraded to the next version
diff --git a/packages/ppl/meta.yaml b/packages/ppl/meta.yaml
index e1c761171f9..df7edfd665d 100644
--- a/packages/ppl/meta.yaml
+++ b/packages/ppl/meta.yaml
@@ -29,6 +29,8 @@ build:
         --prefix=${WASM_LIBRARY_DIR}
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
+about:
+  license: GPL-3.0+
 extra:
   recipe-maintainers:
     - mkoeppe
diff --git a/packages/pplpy/meta.yaml b/packages/pplpy/meta.yaml
index 2c5f368e867..9c01ccdf9e2 100644
--- a/packages/pplpy/meta.yaml
+++ b/packages/pplpy/meta.yaml
@@ -24,7 +24,7 @@ about:
   home: https://github.com/sagemath/pplpy
   PyPI: https://pypi.org/project/pplpy
   summary: Python PPL wrapper
-  license: GPL v3
+  license: GPL-3.0
 extra:
   recipe-maintainers:
     - mkoeppe
diff --git a/packages/primecountpy/meta.yaml b/packages/primecountpy/meta.yaml
index b7cd747c6eb..299815fea80 100644
--- a/packages/primecountpy/meta.yaml
+++ b/packages/primecountpy/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: https://github.com/dimpase/primecountpy
   PyPI: https://pypi.org/project/primecountpy
   summary: Cython interface for C++ primecount library
-  license: GPLv3
+  license: GPL-3.0
 requirements:
   host:
     - primecount
diff --git a/packages/prompt_toolkit/meta.yaml b/packages/prompt_toolkit/meta.yaml
index 43d888e4b9b..cd631b8b9ff 100644
--- a/packages/prompt_toolkit/meta.yaml
+++ b/packages/prompt_toolkit/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/prompt-toolkit/python-prompt-toolkit
   PyPI: https://pypi.org/project/prompt_toolkit
   summary: Library for building powerful interactive command lines in Python
-  license: ""
+  license: BSD-3-Clause
diff --git a/packages/protobuf/meta.yaml b/packages/protobuf/meta.yaml
index 420a03fa0ca..ab7a5fc2f68 100644
--- a/packages/protobuf/meta.yaml
+++ b/packages/protobuf/meta.yaml
@@ -14,7 +14,7 @@ about:
   home: https://github.com/protocolbuffers/protobuf
   PyPI: https://pypi.org/project/protobuf
   summary: Protocol Buffers are a language-neutral, platform-neutral extensible mechanism for serializing structured data
-  license: Custom
+  license: BSD-3-Clause
 
 build:
   cflags: "-Wno-int-conversion"
diff --git a/packages/py/meta.yaml b/packages/py/meta.yaml
index 3025eccdd2a..abac6d8007e 100644
--- a/packages/py/meta.yaml
+++ b/packages/py/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://py.readthedocs.io/
   PyPI: https://pypi.org/project/py
   summary: library with cross-python path, ini-parsing, io, code, log facilities
-  license: MIT license
+  license: MIT
diff --git a/packages/pyarrow/meta.yaml b/packages/pyarrow/meta.yaml
index c7e070ceee6..9390a69d229 100644
--- a/packages/pyarrow/meta.yaml
+++ b/packages/pyarrow/meta.yaml
@@ -11,6 +11,9 @@ requirements:
     - numpy
     - pandas
     - pyodide-unix-timezones
+about:
+  home: https://github.com/apache/arrow
+  license: Apache-2.0
 extra:
   recipe-maintainers:
     - joemarshall
diff --git a/packages/pycparser/meta.yaml b/packages/pycparser/meta.yaml
index a7b0f9c8813..6883190371f 100644
--- a/packages/pycparser/meta.yaml
+++ b/packages/pycparser/meta.yaml
@@ -12,4 +12,4 @@ about:
   home: https://github.com/eliben/pycparser
   PyPI: https://pypi.org/project/pycparser
   summary: C parser in Python
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/pycryptodome/meta.yaml b/packages/pycryptodome/meta.yaml
index 492f7f4a962..cb350a076f2 100644
--- a/packages/pycryptodome/meta.yaml
+++ b/packages/pycryptodome/meta.yaml
@@ -12,4 +12,4 @@ about:
   home: https://www.pycryptodome.org
   PyPI: https://pypi.org/project/pycryptodome
   summary: Cryptographic library for Python
-  license: BSD, Public Domain
+  license: Mixed BSD-2-Clause, Public Domain
diff --git a/packages/pydecimal/meta.yaml b/packages/pydecimal/meta.yaml
index 25441c3c2cf..1fea98032c7 100644
--- a/packages/pydecimal/meta.yaml
+++ b/packages/pydecimal/meta.yaml
@@ -15,3 +15,5 @@ build:
     cd Python-${PYVERSION}
 
     cp Lib/_pydecimal.py ${PKG_BUILD_DIR}/_pydecimal.py
+about:
+  license: PSF
diff --git a/packages/pydoc_data/meta.yaml b/packages/pydoc_data/meta.yaml
index 2daf973b49c..ee698470685 100644
--- a/packages/pydoc_data/meta.yaml
+++ b/packages/pydoc_data/meta.yaml
@@ -15,3 +15,5 @@ build:
     cd Python-${PYVERSION}/Lib
 
     tar --exclude=__pycache__ -cf - pydoc_data | tar -C ${PKG_BUILD_DIR} -xf -
+about:
+  license: PSF
diff --git a/packages/pyerfa/meta.yaml b/packages/pyerfa/meta.yaml
index 38144a62604..3c7ca16f68e 100644
--- a/packages/pyerfa/meta.yaml
+++ b/packages/pyerfa/meta.yaml
@@ -15,4 +15,4 @@ about:
   home: https://github.com/liberfa/pyerfa
   PyPI: https://pypi.org/project/pyerfa
   summary: Python bindings for ERFA
-  license: BSD 3-Clause License
+  license: BSD-3-Clause
diff --git a/packages/pygame-ce/meta.yaml b/packages/pygame-ce/meta.yaml
index 1ee8c23ae8e..464c3dce7c3 100644
--- a/packages/pygame-ce/meta.yaml
+++ b/packages/pygame-ce/meta.yaml
@@ -91,4 +91,4 @@ about:
   home: https://www.pygame.org
   PyPI: https://pypi.org/project/pygame
   summary: Python Game Development
-  license: LGPL
+  license: LGPL-2.1
diff --git a/packages/pyheif/meta.yaml b/packages/pyheif/meta.yaml
index 496f2700aed..92ceaf567f3 100644
--- a/packages/pyheif/meta.yaml
+++ b/packages/pyheif/meta.yaml
@@ -22,3 +22,4 @@ about:
   home: https://github.com/carsales/pyheif
   PyPI: https://pypi.org/project/pyheif
   summary: Python 3.6+ interface to libheif library
+  license: Apache-2.0
diff --git a/packages/pynacl/meta.yaml b/packages/pynacl/meta.yaml
index 43b3f72f428..dfd23607fa2 100644
--- a/packages/pynacl/meta.yaml
+++ b/packages/pynacl/meta.yaml
@@ -17,4 +17,4 @@ about:
   home: https://github.com/pyca/pynacl/
   PyPI: https://pypi.org/project/pynacl
   summary: Python binding to the Networking and Cryptography (NaCl) library
-  license: Apache License 2.0
+  license: Apache-2.0
diff --git a/packages/pyparsing/meta.yaml b/packages/pyparsing/meta.yaml
index 1f9927b2ad6..012aeb95bca 100644
--- a/packages/pyparsing/meta.yaml
+++ b/packages/pyparsing/meta.yaml
@@ -6,3 +6,6 @@ package:
 source:
   sha256: f9db75911801ed778fe61bb643079ff86601aca99fcae6345aa67292038fb742
   url: https://files.pythonhosted.org/packages/9d/ea/6d76df31432a0e6fdf81681a895f009a4bb47b3c39036db3e1b528191d52/pyparsing-3.1.2-py3-none-any.whl
+about:
+  home: https://github.com/pyparsing/pyparsing/
+  license: MIT
diff --git a/packages/pyproj/meta.yaml b/packages/pyproj/meta.yaml
index 48ab84e9717..d00accf11c0 100644
--- a/packages/pyproj/meta.yaml
+++ b/packages/pyproj/meta.yaml
@@ -40,4 +40,4 @@ about:
   summary:
     Python interface to PROJ (cartographic projections and coordinate transformations
     library)
-  license: "License :: OSI Approved :: MIT License"
+  license: MIT
diff --git a/packages/pysam/meta.yaml b/packages/pysam/meta.yaml
index f6370b84835..87e51194309 100644
--- a/packages/pysam/meta.yaml
+++ b/packages/pysam/meta.yaml
@@ -27,7 +27,7 @@ about:
   home: https://github.com/pysam-developers/pysam
   PyPI: https://pypi.org/project/pysam
   summary: Package for reading, manipulating, and writing genomic data
-  license: MIT License
+  license: MIT
 extra:
   recipe-maintainers:
     - stevenweaver
diff --git a/packages/pytest-asyncio/meta.yaml b/packages/pytest-asyncio/meta.yaml
index b6f49e0b20b..1bcc99de1ea 100644
--- a/packages/pytest-asyncio/meta.yaml
+++ b/packages/pytest-asyncio/meta.yaml
@@ -16,7 +16,7 @@ about:
   home: https://github.com/pytest-dev/pytest-asyncio
   PyPI: https://pypi.org/project/pytest-asyncio
   summary: Pytest support for asyncio
-  license: Apache 2.0
+  license: Apache-2.0
 extra:
   recipe-maintainers:
     - agriyakhetarpal
diff --git a/packages/python-dateutil/meta.yaml b/packages/python-dateutil/meta.yaml
index c6c4409c5c2..d68c7290c49 100644
--- a/packages/python-dateutil/meta.yaml
+++ b/packages/python-dateutil/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/dateutil/dateutil
   PyPI: https://pypi.org/project/python-dateutil
   summary: Extensions to the standard Python datetime module
-  license: Dual License
+  license: BSD-3-Clause
diff --git a/packages/python-solvespace/meta.yaml b/packages/python-solvespace/meta.yaml
index 5f7db6f33d7..606e2a3b870 100644
--- a/packages/python-solvespace/meta.yaml
+++ b/packages/python-solvespace/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://github.com/KmolYuan/solvespace/tree/python
   PyPI: https://pypi.org/project/python_solvespace
   summary: Python library of Solvespace.
-  license: GPLv3+
+  license: GPL-3.0+
diff --git a/packages/pyxel/meta.yaml b/packages/pyxel/meta.yaml
index 1fad983b074..3c56d5a3b97 100644
--- a/packages/pyxel/meta.yaml
+++ b/packages/pyxel/meta.yaml
@@ -23,3 +23,4 @@ about:
   home: https://github.com/kitao/pyxel
   PyPI: https://pypi.org/project/pyxel/
   summary: A retro game engine for Python
+  license: MIT
diff --git a/packages/rasterio/meta.yaml b/packages/rasterio/meta.yaml
index db015532810..bf8777c07db 100644
--- a/packages/rasterio/meta.yaml
+++ b/packages/rasterio/meta.yaml
@@ -37,7 +37,7 @@ about:
   home: https://github.com/rasterio/rasterio
   PyPI: https://pypi.org/project/rasterio
   summary: Fast and direct raster I/O for use with Numpy and SciPy
-  license: BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - kjmalek
diff --git a/packages/rebound/meta.yaml b/packages/rebound/meta.yaml
index 9469bee5626..a850257d793 100644
--- a/packages/rebound/meta.yaml
+++ b/packages/rebound/meta.yaml
@@ -24,7 +24,7 @@ about:
   home: https://github.com/hannorein/rebound/
   PyPI: https://pypi.org/project/rebound
   summary: An open-source multi-purpose N-body code
-  license: GPL
+  license: GPL-3.0
 extra:
   recipe-maintainers:
     - hannorein
diff --git a/packages/reboundx/meta.yaml b/packages/reboundx/meta.yaml
index b4a0c67459b..fa52882cb4d 100644
--- a/packages/reboundx/meta.yaml
+++ b/packages/reboundx/meta.yaml
@@ -22,7 +22,7 @@ about:
   home: https://github.com/dtamayo/reboundx
   PyPI: https://pypi.org/project/reboundx
   summary: A library for including additional forces in REBOUND
-  license: GPL
+  license: GPL-3.0
 extra:
   recipe-maintainers:
     - hannorein
diff --git a/packages/regex/meta.yaml b/packages/regex/meta.yaml
index d5e03fe08cb..f58866ef339 100644
--- a/packages/regex/meta.yaml
+++ b/packages/regex/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/mrabarnett/mrab-regex
   PyPI: https://pypi.org/project/regex
   summary: Alternative regular expression module, to replace re.
-  license: Apache Software License
+  license: Apache-2.0
diff --git a/packages/requests/meta.yaml b/packages/requests/meta.yaml
index 721d0b3c557..0098946e28b 100644
--- a/packages/requests/meta.yaml
+++ b/packages/requests/meta.yaml
@@ -19,4 +19,4 @@ about:
   home: https://requests.readthedocs.io
   PyPI: https://pypi.org/project/requests
   summary: Python HTTP for Humans.
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/retrying/meta.yaml b/packages/retrying/meta.yaml
index e08a869bed3..a1c96cfc959 100644
--- a/packages/retrying/meta.yaml
+++ b/packages/retrying/meta.yaml
@@ -13,4 +13,4 @@ about:
   home: https://github.com/rholder/retrying
   PyPI: https://pypi.org/project/retrying
   summary: Retrying
-  license: Apache 2.0
+  license: Apache-2.0
diff --git a/packages/river/meta.yaml b/packages/river/meta.yaml
index 415f3e3e257..19bcebdc960 100644
--- a/packages/river/meta.yaml
+++ b/packages/river/meta.yaml
@@ -23,7 +23,7 @@ about:
   home: https://github.com/online-ml/river
   PyPI: https://pypi.org/project/river
   summary: Online machine learning in Python
-  license: BSD-3
+  license: BSD-3-Clause
 
 test:
   imports:
diff --git a/packages/ruamel.yaml/meta.yaml b/packages/ruamel.yaml/meta.yaml
index b5e0f883fe9..62a08e696b3 100644
--- a/packages/ruamel.yaml/meta.yaml
+++ b/packages/ruamel.yaml/meta.yaml
@@ -15,4 +15,4 @@ about:
   summary:
     ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation
     of comments, seq/map flow style, and map key order
-  license: MIT license
+  license: MIT
diff --git a/packages/rust-panic-test/meta.yaml b/packages/rust-panic-test/meta.yaml
index 1f4096ae32d..ab87aa76380 100644
--- a/packages/rust-panic-test/meta.yaml
+++ b/packages/rust-panic-test/meta.yaml
@@ -10,3 +10,5 @@ build:
 requirements:
   executable:
     - rustup
+about:
+  license: MPL-2.0
diff --git a/packages/scikit-image/meta.yaml b/packages/scikit-image/meta.yaml
index c264b31a1d5..8936caf125d 100644
--- a/packages/scikit-image/meta.yaml
+++ b/packages/scikit-image/meta.yaml
@@ -32,7 +32,7 @@ about:
   home: https://scikit-image.org
   PyPI: https://pypi.org/project/scikit-image
   summary: Image processing in Python
-  license: Modified BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - lagru
diff --git a/packages/scikit-learn/meta.yaml b/packages/scikit-learn/meta.yaml
index db3269e4c75..e9bb64145f3 100644
--- a/packages/scikit-learn/meta.yaml
+++ b/packages/scikit-learn/meta.yaml
@@ -64,7 +64,7 @@ about:
   home: http://scikit-learn.org
   PyPI: https://pypi.org/project/scikit-learn
   summary: A set of python modules for machine learning and data mining
-  license: new BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - lesteve
diff --git a/packages/scipy/meta.yaml b/packages/scipy/meta.yaml
index 54d62bb6f8a..31bd64c8d02 100644
--- a/packages/scipy/meta.yaml
+++ b/packages/scipy/meta.yaml
@@ -175,7 +175,7 @@ about:
   home: https://www.scipy.org
   PyPI: https://pypi.org/project/scipy
   summary: "SciPy: Scientific Library for Python"
-  license: BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - lesteve
diff --git a/packages/screed/meta.yaml b/packages/screed/meta.yaml
index 3fddb4b89ee..1a0b7585d86 100644
--- a/packages/screed/meta.yaml
+++ b/packages/screed/meta.yaml
@@ -11,4 +11,4 @@ about:
   home: https://github.com/dib-lab/screed
   PyPI: https://pypi.org/project/screed
   summary: a Python library for loading FASTA and FASTQ sequences
-  license: BSD 3-clause
+  license: BSD-3-Clause
diff --git a/packages/setuptools/meta.yaml b/packages/setuptools/meta.yaml
index db138fad10e..9411aceeb11 100644
--- a/packages/setuptools/meta.yaml
+++ b/packages/setuptools/meta.yaml
@@ -18,3 +18,4 @@ about:
   home: https://github.com/pypa/setuptools
   PyPI: https://pypi.org/project/setuptools
   summary: Easily download, build, install, upgrade, and uninstall Python packages
+  license: MIT
diff --git a/packages/shapely/meta.yaml b/packages/shapely/meta.yaml
index 2667ca5388a..cfe3f8559c8 100644
--- a/packages/shapely/meta.yaml
+++ b/packages/shapely/meta.yaml
@@ -33,4 +33,4 @@ about:
   home: https://github.com/shapely/shapely
   PyPI: https://pypi.org/project/shapely
   summary: Geometric objects, predicates, and operations
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/sharedlib-test-py/meta.yaml b/packages/sharedlib-test-py/meta.yaml
index 83e5c15d8e7..f2d3fa0230d 100644
--- a/packages/sharedlib-test-py/meta.yaml
+++ b/packages/sharedlib-test-py/meta.yaml
@@ -22,3 +22,5 @@ build:
     -I$(PKGDIR)/../sharedlib-test/src/include
   ldflags: |
     $(PKGDIR)/../sharedlib-test/build/sharedlib-test-1.0/dist/sharedlib-test.so
+about:
+  license: MPL-2.0
diff --git a/packages/sharedlib-test/meta.yaml b/packages/sharedlib-test/meta.yaml
index b0ebf9f15cb..d7a645f2f41 100644
--- a/packages/sharedlib-test/meta.yaml
+++ b/packages/sharedlib-test/meta.yaml
@@ -17,3 +17,5 @@ build:
     emcc dep2.o ${SIDE_MODULE_LDFLAGS} -o ${DISTDIR}/sharedlib-test-dep2.so
     emcc dep.o ${SIDE_MODULE_LDFLAGS} ${DISTDIR}/sharedlib-test-dep2.so -o ${DISTDIR}/sharedlib-test-dep.so
     emcc main.o ${SIDE_MODULE_LDFLAGS} ${DISTDIR}/sharedlib-test-dep.so -o ${DISTDIR}/sharedlib-test.so
+about:
+  license: MPL-2.0
diff --git a/packages/sortedcontainers/meta.yaml b/packages/sortedcontainers/meta.yaml
index 5479a21fea4..fae45ff96af 100644
--- a/packages/sortedcontainers/meta.yaml
+++ b/packages/sortedcontainers/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: http://www.grantjenks.com/docs/sortedcontainers/
   PyPI: https://pypi.org/project/sortedcontainers
   summary: Sorted Containers -- Sorted List, Sorted Dict, Sorted Set
-  license: Apache 2.0
+  license: Apache-2.0
 extra:
   recipe-maintainers:
     - bitsondatadev
diff --git a/packages/soupsieve/meta.yaml b/packages/soupsieve/meta.yaml
index 29b84d271b2..44ec5b63309 100644
--- a/packages/soupsieve/meta.yaml
+++ b/packages/soupsieve/meta.yaml
@@ -6,3 +6,6 @@ package:
 source:
   sha256: eaa337ff55a1579b6549dc679565eac1e3d000563bcb1c8ab0d0fefbc0c2cdc7
   url: https://files.pythonhosted.org/packages/4c/f3/038b302fdfbe3be7da016777069f26ceefe11a681055ea1f7817546508e3/soupsieve-2.5-py3-none-any.whl
+about:
+  home: https://github.com/facelessuser/soupsieve
+  license: MIT
diff --git a/packages/sparseqr/meta.yaml b/packages/sparseqr/meta.yaml
index 723e89d5fcf..72cad9b5170 100644
--- a/packages/sparseqr/meta.yaml
+++ b/packages/sparseqr/meta.yaml
@@ -33,3 +33,6 @@ build:
     -lcolamd
     -lcholmod
     -lmetis
+about:
+  home: https://github.com/yig/PySPQR
+  license: CC0-1.0
diff --git a/packages/sqlite3/meta.yaml b/packages/sqlite3/meta.yaml
index 3b753f6faea..8ac52ea2d70 100644
--- a/packages/sqlite3/meta.yaml
+++ b/packages/sqlite3/meta.yaml
@@ -39,3 +39,5 @@ build:
        -sUSE_SQLITE3 -lsqlite3
 
     cd Lib && tar --exclude=test -cf - sqlite3 | tar -C ${PKG_BUILD_DIR} -xf -
+about:
+  license: PSF
diff --git a/packages/ssl/meta.yaml b/packages/ssl/meta.yaml
index cc70d9ace5f..dd46e6d2c5d 100644
--- a/packages/ssl/meta.yaml
+++ b/packages/ssl/meta.yaml
@@ -28,3 +28,5 @@ requirements:
     - openssl
   run:
     - openssl
+about:
+  license: PSF
diff --git a/packages/statsmodels/meta.yaml b/packages/statsmodels/meta.yaml
index 136c6bacc91..74365551abf 100644
--- a/packages/statsmodels/meta.yaml
+++ b/packages/statsmodels/meta.yaml
@@ -32,7 +32,7 @@ about:
   home: https://www.statsmodels.org/
   PyPI: https://pypi.org/project/statsmodels
   summary: Statistical computations and models for Python
-  license: BSD License
+  license: BSD-3-Clause
 
 extra:
   recipe-maintainers:
diff --git a/packages/suitesparse/meta.yaml b/packages/suitesparse/meta.yaml
index c62b0d5c809..f2f73f52fa3 100644
--- a/packages/suitesparse/meta.yaml
+++ b/packages/suitesparse/meta.yaml
@@ -37,3 +37,6 @@ build:
        ${WASM_LIBRARY_DIR}/lib/libcholmod.so \
        ${WASM_LIBRARY_DIR}/lib/libspqr.so \
        ${DISTDIR}
+about:
+  home: https://github.com/DrTimothyAldenDavis/SuiteSparse
+  license: Mixed, see https://github.com/DrTimothyAldenDavis/SuiteSparse/blob/dev/LICENSE.txt
diff --git a/packages/svgwrite/meta.yaml b/packages/svgwrite/meta.yaml
index ff372e6cfa8..b67ac0d9dfd 100644
--- a/packages/svgwrite/meta.yaml
+++ b/packages/svgwrite/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: http://github.com/mozman/svgwrite.git
   PyPI: https://pypi.org/project/svgwrite
   summary: A Python library to create SVG drawings.
-  license: MIT License
+  license: MIT
diff --git a/packages/swiglpk/meta.yaml b/packages/swiglpk/meta.yaml
index af6d16890e2..97f2003d508 100644
--- a/packages/swiglpk/meta.yaml
+++ b/packages/swiglpk/meta.yaml
@@ -16,3 +16,7 @@ build:
 requirements:
   host:
     - glpk
+about:
+  home: https://github.com/opencobra/swiglpk
+  PyPI: https://pypi.org/project/swiglpk/
+  license: GPL-3.0
diff --git a/packages/sympy/meta.yaml b/packages/sympy/meta.yaml
index be0050f4653..acaa2470834 100644
--- a/packages/sympy/meta.yaml
+++ b/packages/sympy/meta.yaml
@@ -14,7 +14,7 @@ about:
   home: https://sympy.org
   PyPI: https://pypi.org/project/sympy
   summary: Computer algebra system (CAS) in Python
-  license: BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - oscarbenjamin
diff --git a/packages/test/meta.yaml b/packages/test/meta.yaml
index 47b21e9cc69..5af447fe627 100644
--- a/packages/test/meta.yaml
+++ b/packages/test/meta.yaml
@@ -85,3 +85,5 @@ build:
       tar --exclude=__pycache__ -cf - \
       test \
       | tar -C ${PKG_BUILD_DIR} -xf -
+about:
+  license: PSF
diff --git a/packages/tomli-w/meta.yaml b/packages/tomli-w/meta.yaml
index c41d4598856..e167780d240 100644
--- a/packages/tomli-w/meta.yaml
+++ b/packages/tomli-w/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/hukkin/tomli-w
   PyPI: https://pypi.org/project/tomli-w
   summary: "A lil' TOML writer"
-  license: "MIT License"
+  license: MIT
diff --git a/packages/tomli/meta.yaml b/packages/tomli/meta.yaml
index 3d6a77cc2b8..de2820e6ae6 100644
--- a/packages/tomli/meta.yaml
+++ b/packages/tomli/meta.yaml
@@ -9,3 +9,5 @@ source:
 about:
   PyPI: https://pypi.org/project/tomli
   summary: A lil' TOML parser
+  license: MIT
+  home: https://github.com/hukkin/tomli
diff --git a/packages/toolz/meta.yaml b/packages/toolz/meta.yaml
index 5d86e9ad46a..a6e88d026d3 100644
--- a/packages/toolz/meta.yaml
+++ b/packages/toolz/meta.yaml
@@ -11,4 +11,4 @@ about:
   home: https://github.com/pytoolz/toolz/
   PyPI: https://pypi.org/project/toolz
   summary: List processing tools and functional utilities
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/tqdm/meta.yaml b/packages/tqdm/meta.yaml
index 9dd1ea7af54..0987dc61da5 100644
--- a/packages/tqdm/meta.yaml
+++ b/packages/tqdm/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://tqdm.github.io
   PyPI: https://pypi.org/project/tqdm
   summary: Fast, Extensible Progress Meter
-  license: MPLv2.0, MIT Licences
+  license: Mixed MPL-2.0, MIT
diff --git a/packages/traitlets/meta.yaml b/packages/traitlets/meta.yaml
index c708ba9c7b7..60707f3d8ca 100644
--- a/packages/traitlets/meta.yaml
+++ b/packages/traitlets/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: ""
   PyPI: https://pypi.org/project/traitlets
   summary: Traitlets Python configuration system
-  license: BSD 3-Clause License
+  license: BSD-3-Clause
diff --git a/packages/traits/meta.yaml b/packages/traits/meta.yaml
index 7fab46e3f91..812b8714418 100644
--- a/packages/traits/meta.yaml
+++ b/packages/traits/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: http://docs.enthought.com/traits
   PyPI: https://pypi.org/project/traits
   summary: Observable typed attributes for Python classes
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/typing-extensions/meta.yaml b/packages/typing-extensions/meta.yaml
index a82f2bf6412..79b2f4dfe64 100644
--- a/packages/typing-extensions/meta.yaml
+++ b/packages/typing-extensions/meta.yaml
@@ -6,3 +6,6 @@ package:
 source:
   url: https://files.pythonhosted.org/packages/01/f3/936e209267d6ef7510322191003885de524fc48d1b43269810cd589ceaf5/typing_extensions-4.11.0-py3-none-any.whl
   sha256: c1f94d72897edaf4ce775bb7558d5b79d8126906a14ea5ed1635921406c0387a
+about:
+  home: https://github.com/python/typing_extensions
+  license: PSF
diff --git a/packages/uncertainties/meta.yaml b/packages/uncertainties/meta.yaml
index 3aa86cc9d41..62d8ed91852 100644
--- a/packages/uncertainties/meta.yaml
+++ b/packages/uncertainties/meta.yaml
@@ -15,4 +15,4 @@ about:
   summary:
     Transparent calculations with uncertainties on the quantities involved
     (aka error propagation); fast calculation of derivatives
-  license: Revised BSD License
+  license: BSD-3-Clause
diff --git a/packages/unyt/meta.yaml b/packages/unyt/meta.yaml
index 4062a3f855d..ad94c843266 100644
--- a/packages/unyt/meta.yaml
+++ b/packages/unyt/meta.yaml
@@ -15,4 +15,4 @@ about:
   home: https://github.com/yt-project/unyt
   PyPI: https://pypi.org/project/unyt
   summary: A package for handling numpy arrays with units
-  license: BSD license
+  license: BSD-3-Clause
diff --git a/packages/urllib3/meta.yaml b/packages/urllib3/meta.yaml
index 5da4d234af0..479051e04a1 100644
--- a/packages/urllib3/meta.yaml
+++ b/packages/urllib3/meta.yaml
@@ -11,7 +11,7 @@ test:
     - urllib3
     - urllib3.contrib.emscripten
 about:
-  home: ""
+  home: https://github.com/urllib3/urllib3
   PyPI: https://pypi.org/project/urllib3
   summary: HTTP library with thread-safe connection pooling, file post, and more.
-  license: ""
+  license: MIT
diff --git a/packages/webencodings/meta.yaml b/packages/webencodings/meta.yaml
index ca749c9bb8e..8614259165e 100644
--- a/packages/webencodings/meta.yaml
+++ b/packages/webencodings/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/SimonSapin/python-webencodings
   PyPI: https://pypi.org/project/webencodings
   summary: Character encoding aliases for legacy web content
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/wrapt/meta.yaml b/packages/wrapt/meta.yaml
index c3617299f07..a179b7a01c6 100644
--- a/packages/wrapt/meta.yaml
+++ b/packages/wrapt/meta.yaml
@@ -10,4 +10,4 @@ about:
   home: https://github.com/GrahamDumpleton/wrapt
   PyPI: https://pypi.org/project/wrapt
   summary: Module for decorators, wrappers and monkey patching.
-  license: BSD
+  license: BSD-2-Clause
diff --git a/packages/xarray/meta.yaml b/packages/xarray/meta.yaml
index 3053bd0e72b..ef681386f1d 100644
--- a/packages/xarray/meta.yaml
+++ b/packages/xarray/meta.yaml
@@ -16,4 +16,4 @@ about:
   home: https://github.com/pydata/xarray
   PyPI: https://pypi.org/project/xarray
   summary: N-D labeled arrays and datasets in Python
-  license: Apache
+  license: Apache-2.0
diff --git a/packages/xlrd/meta.yaml b/packages/xlrd/meta.yaml
index c1209da9745..c8da8977fc0 100644
--- a/packages/xlrd/meta.yaml
+++ b/packages/xlrd/meta.yaml
@@ -12,4 +12,4 @@ about:
   summary:
     Library for developers to extract data from Microsoft Excel (tm) .xls spreadsheet
     files
-  license: BSD
+  license: BSD-3-Clause
diff --git a/packages/xxhash/meta.yaml b/packages/xxhash/meta.yaml
index 53acbe37b26..0add9aa1c0d 100644
--- a/packages/xxhash/meta.yaml
+++ b/packages/xxhash/meta.yaml
@@ -10,7 +10,7 @@ about:
   home: https://github.com/ifduyue/python-xxhash
   PyPI: https://pypi.org/project/xxhash
   summary: Python binding for xxHash
-  license: BSD
+  license: BSD-2-Clause
 extra:
   recipe-maintainers:
     - ifduyue
diff --git a/packages/yarl/meta.yaml b/packages/yarl/meta.yaml
index 29e707ad36e..f251dd87246 100644
--- a/packages/yarl/meta.yaml
+++ b/packages/yarl/meta.yaml
@@ -14,4 +14,4 @@ about:
   home: https://github.com/aio-libs/yarl/
   PyPI: https://pypi.org/project/yarl
   summary: Yet another URL library
-  license: Apache 2
+  license: Apache-2.0
diff --git a/packages/yt/meta.yaml b/packages/yt/meta.yaml
index 497a3208270..074b4ac09c0 100644
--- a/packages/yt/meta.yaml
+++ b/packages/yt/meta.yaml
@@ -36,4 +36,4 @@ about:
   home: https://github.com/yt-project/yt
   PyPI: https://pypi.org/project/yt
   summary: An analysis and visualization toolkit for volumetric data
-  license: BSD 3-Clause
+  license: BSD-3-Clause
diff --git a/packages/zlib/meta.yaml b/packages/zlib/meta.yaml
index 6be360a7442..a70bb77ab7a 100644
--- a/packages/zlib/meta.yaml
+++ b/packages/zlib/meta.yaml
@@ -23,3 +23,21 @@ build:
     emmake make -j ${PYODIDE_JOBS:-3}
     emmake make install
     popd
+about:
+  home: https://zlib.net/
+  license: >
+    This software is provided 'as-is', without any express or implied warranty.
+    In no event will the authors be held liable for any damages arising from the
+    use of this software.
+
+    Permission is granted to anyone to use this software for any purpose,
+    including commercial applications, and to alter it and redistribute it
+    freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+      claim that you wrote the original software. If you use this software in a
+      product, an acknowledgment in the product documentation would be
+      appreciated but is not required.
+    2. Altered source versions must be plainly marked as such, and must not be
+      misrepresented as being the original software.
+    3. This notice may not be removed or altered from any source distribution.
diff --git a/packages/zstandard/meta.yaml b/packages/zstandard/meta.yaml
index 808ee541c68..f8fb2db4612 100644
--- a/packages/zstandard/meta.yaml
+++ b/packages/zstandard/meta.yaml
@@ -16,7 +16,7 @@ about:
   home: https://github.com/indygreg/python-zstandard
   PyPI: https://pypi.org/project/zstandard
   summary: Zstandard bindings for Python
-  license: BSD
+  license: BSD-3-Clause
 extra:
   recipe-maintainers:
     - agriyakhetarpal