diff --git a/.github/workflows/ci-wsl.yml b/.github/workflows/ci-wsl.yml
index 9808b919bf4..7c5cce70cb3 100644
--- a/.github/workflows/ci-wsl.yml
+++ b/.github/workflows/ci-wsl.yml
@@ -1,11 +1,19 @@
 name: Build & Test WSL
 
-on: [push, pull_request]
+on:
+  pull_request:
+    types: [opened, synchronize]
+  push:
+    tags:
+      - '*'
+    branches:
+      - 'public/build/**wsl**'
+  workflow_dispatch:
 
 jobs:
   windows:
     runs-on: windows-latest
-    name: Windows (using WSL)
+    name: Ubuntu 20.04
     # Following https://trac.sagemath.org/ticket/25206#comment:63
     steps:
     - name: Configure git
@@ -18,22 +26,10 @@ jobs:
         Ubuntu\ubuntu2004.exe install --root
     - name: Install dependencies
       run: |
-        Function ExtractPackages
-        {
-           param($path)
-           @(Get-Content $path | Where-Object { !$_.StartsWith("#") })
-        }
-        $packages = Get-ChildItem build/pkgs -recurse -Include debian.txt, debian-bootstrap.txt | foreach-object { ExtractPackages $_.FullName } | sort -Unique
-        # Add tox which is use to build
-        $packages += 'tox'
-        echo "Install the following packages:" @packages
-        # Add deadsnakes so that libpython3.7-dev is found
-        & wsl sudo add-apt-repository ppa:deadsnakes/ppa
-        # Install
-        & wsl sudo apt-get update -y 
-        & wsl sudo apt-get install -y @packages
+        wsl sudo apt-get update -y 
+        wsl sudo apt-get install -y tox
     - name: Build
-      run: wsl tox -e local -- SAGE_NUM_THREADS=4 build
+      run: wsl tox -e local-sudo-ubuntu-standard -- SAGE_NUM_THREADS=4 build
       env:
         # WSL runs everything as root, so we have to enable build as root user
         EXTRA_CONFIGURE_ARGS: "--enable-build-as-root"
@@ -42,7 +38,7 @@ jobs:
         MAKE: "make -j2"
         WSLENV: EXTRA_CONFIGURE_ARGS:MAKE
     - name: Test
-      run: wsl tox -e local -- SAGE_NUM_THREADS=4 ptest
+      run: wsl tox -e local-sudo-ubuntu-standard -- SAGE_NUM_THREADS=4 ptest
     - name: Prepare logs artifact
       run: mkdir -p "artifacts/logs"; cp -r .tox/*/log "artifacts/logs"
       shell: bash
diff --git a/build/bin/sage-print-system-package-command b/build/bin/sage-print-system-package-command
index 839085be093..2117a26b094 100755
--- a/build/bin/sage-print-system-package-command
+++ b/build/bin/sage-print-system-package-command
@@ -21,6 +21,12 @@ do
         --prompt)
             PROMPT='  $ '
             ;;
+        --no-install-recommends)
+            NO_INSTALL_RECOMMENDS=yes
+            ;;
+        --yes)
+            YES=yes
+            ;;
         -*)
             echo >&2 "$0: unknown option $1"
             exit 1
@@ -37,6 +43,7 @@ if [ -z "$system" -o -z "$command" ]; then
     exit 1
 fi
 system_packages="$*"
+options=
 shopt -s extglob
 case $system:$command in
     homebrew*:setup-build-env)
@@ -56,22 +63,33 @@ case $system:$command in
         echo "${PROMPT}${SUDO}apt-get $command $system_packages"
         ;;
     @(debian*|ubuntu*):*)
-        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}apt-get $command $system_packages"
+        [ "$NO_INSTALL_RECOMMENDS" = yes ] && options="$options --no-install-recommends"
+        [ "$YES" = yes ] && options="$options --yes"
+        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}apt-get $command $options $system_packages"
         ;;
     @(fedora*|redhat*|centos*):install)
-        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}yum install $system_packages"
+        [ "$YES" = yes ] && options="$options -y"
+        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}yum install $options $system_packages"
         ;;
     gentoo*:install)
         [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}emerge $system_packages"
         ;;
+    arch*:update)
+        echo "${PROMPT}${SUDO}pacman -Sy"
+        ;;
     arch*:install)
-        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}pacman -S $system_packages"
+        [ "$YES" = yes ] && options="$options --noconfirm"
+        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}pacman -S $options $system_packages"
+        ;;
+    void*:update)
+        echo "${PROMPT}${SUDO}xbps-install -Su"
         ;;
-
     void*:install)
-        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}xbps-install $system_packages"
+        [ "$YES" = yes ] && options="$options --yes"
+        [ -n "$system_packages" ] && echo "${PROMPT}${SUDO}xbps-install $options $system_packages"
         ;;
     *conda*:install)
+        [ "$YES" = yes ] && options="$options --yes"
         [ -n "$system_packages" ] && echo "${PROMPT}conda install $system_packages"
         ;;
     homebrew*:install)
diff --git a/build/pkgs/_recommended/distros/debian.txt b/build/pkgs/_recommended/distros/debian.txt
index 8cd6a185445..8041435c58d 100644
--- a/build/pkgs/_recommended/distros/debian.txt
+++ b/build/pkgs/_recommended/distros/debian.txt
@@ -1,7 +1,7 @@
 # From https://wiki.sagemath.org/prerequisitesUbuntu
 
 # to generate pdf documentation
-texlive-generic-extra
+texlive-latex-extra
 # to convert Jupyter notebooks to pdf
 texlive-xetex
 # to generate pdf documentation
diff --git a/tox.ini b/tox.ini
index fee460bd22d..ce11cdc35f6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -132,6 +132,8 @@ setenv =
     maximal: TYPE_PATTERN=@(standard|optional)
     # local envs need HOME set, also Docker 19.03 needs HOME
     {local,docker}: HOME={envdir}
+    # for local envs we can guess the package system if it is not provided as a factor
+    local:          SYSTEM=$(build/bin/sage-guess-package-system)
     #
     # default tag is "latest"
     #
@@ -409,6 +411,14 @@ commands =
     local-conda-standard:  bash -c 'PACKAGES=`sed "s/#.*//;" build/pkgs/*/distros/conda.txt`; {env:SETENV} && {env:CONDA_PREFIX}/bin/conda install --yes --quiet $PACKAGES'
     local-conda-maximal:   bash -c 'PACKAGES=`sed "s/#.*//;" build/pkgs/*/distros/conda.txt`; {env:SETENV} && {env:CONDA_PREFIX}/bin/conda install --yes --quiet $PACKAGES'
     #
+    # local-sudo
+    #
+    local-sudo:    bash -c '$(build/bin/sage-print-system-package-command {env:SYSTEM} update) #'
+    local-sudo:    bash -c 'PACKAGES=`sed "s/#.*//;" build/pkgs/{env:SYSTEM}*.txt`; $(build/bin/sage-print-system-package-command {env:SYSTEM} --sudo --yes --no-install-recommends install $PACKAGES) || [ "$IGNORE_MISSING_SYSTEM_PACKAGES" = yes ] && echo "(ignoring errors)" '
+    # -standard and -maximal are for now the same. This should be fixed when refactoring write-dockerfile.
+    local-sudo-standard:  bash -c 'PACKAGES=`sed "s/#.*//;" build/pkgs/*/distros/{env:SYSTEM}.txt`; $(build/bin/sage-print-system-package-command {env:SYSTEM} --sudo --yes --no-install-recommends install $PACKAGES) || [ "$IGNORE_MISSING_SYSTEM_PACKAGES" = yes ] && echo "(ignoring errors)" '
+    local-sudo-maximal:   bash -c 'PACKAGES=`sed "s/#.*//;" build/pkgs/*/distros/{env:SYSTEM}.txt`; $(build/bin/sage-print-system-package-command {env:SYSTEM} --sudo --yes --no-install-recommends install $PACKAGES) || [ "$IGNORE_MISSING_SYSTEM_PACKAGES" = yes ] && echo "(ignoring errors)" '
+    #
     # All "local" environments
     #
     # Install symbolic links "config.log" and "logs" in SAGE_ROOT so that log files are written into the tox log directory.