diff --git a/core/config/runtime.exs b/core/config/runtime.exs
index a7428b2ba..12aa9a083 100644
--- a/core/config/runtime.exs
+++ b/core/config/runtime.exs
@@ -127,4 +127,12 @@ if config_env() == :prod do
   config :sentry,
     dsn: System.get_env("SENTRY_DSN"),
     environment_name: System.get_env("RELEASE_ENV") || "prod"
+
+  config :core, :feldspar,
+    backend: Systems.Feldspar.S3,
+    bucket: System.get_env("FELDSPAR_S3_BUCKET"),
+    prefix: System.get_env("FELDSPAR_S3_PREFIX", ""),
+    # The public URL must point to the root's (bucket) publicly accessible URL.
+    # It should have a policy that allows anonymous users to read all files.
+    public_url: System.get_env("FELDSPAR_S3_PUBLIC_URL")
 end
diff --git a/core/mix.exs b/core/mix.exs
index 1c7c1f193..bab7e8928 100644
--- a/core/mix.exs
+++ b/core/mix.exs
@@ -67,7 +67,7 @@ defmodule Core.MixProject do
       # Deps
       {:assent, "~> 0.2.3"},
       {:bcrypt_elixir, "~> 2.0"},
-      {:ex_aws_s3, "~> 2.0"},
+      {:ex_aws_s3, "~> 2.5"},
       {:phoenix, "1.7.2"},
       {:phoenix_view, "~> 2.0"},
       {:phoenix_ecto, "~> 4.4"},
diff --git a/core/mix.lock b/core/mix.lock
index add9e9bf3..9fdd36c73 100644
--- a/core/mix.lock
+++ b/core/mix.lock
@@ -10,7 +10,7 @@
   "burnex": {:hex, :burnex, "3.1.0", "1c1ffaab0dccd4efe80f3c3d0de61e9bb4e622fd0c52b0fccea693095e7c30b2", [:mix], [{:dns, "~> 2.2.0", [hex: :dns, repo: "hexpm", optional: false]}], "hexpm", "611af3dd131c1a5e75b367c75641c9104b0a942dfdd9767e69fbe8be883d536d"},
   "bypass": {:hex, :bypass, "2.1.0", "909782781bf8e20ee86a9cabde36b259d44af8b9f38756173e8f5e2e1fabb9b1", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "d9b5df8fa5b7a6efa08384e9bbecfe4ce61c77d28a4282f79e02f1ef78d96b80"},
   "castore": {:hex, :castore, "1.0.1", "240b9edb4e9e94f8f56ab39d8d2d0a57f49e46c56aced8f873892df8ff64ff5a", [:mix], [], "hexpm", "b4951de93c224d44fac71614beabd88b71932d0b1dea80d2f80fb9044e01bbb3"},
-  "certifi": {:hex, :certifi, "2.9.0", "6f2a475689dd47f19fb74334859d460a2dc4e3252a3324bd2111b8f0429e7e21", [:rebar3], [], "hexpm", "266da46bdb06d6c6d35fde799bcb28d36d985d424ad7c08b5bb48f5b5cdd4641"},
+  "certifi": {:hex, :certifi, "2.12.0", "2d1cca2ec95f59643862af91f001478c9863c2ac9cb6e2f89780bfd8de987329", [:rebar3], [], "hexpm", "ee68d85df22e554040cdb4be100f33873ac6051387baf6a8f6ce82272340ff1c"},
   "cldr_utils": {:hex, :cldr_utils, "2.22.0", "5df60df2603dfeeffe26e40ab1ee565df34da288a53bb2db0d0dbd243fd646ef", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:certifi, "~> 2.5", [hex: :certifi, repo: "hexpm", optional: true]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "ea14e8a6aa89ffd59a5d49baebe7ebf852cc024ac50dc2b3dabcd3786eeed657"},
   "combine": {:hex, :combine, "0.10.0", "eff8224eeb56498a2af13011d142c5e7997a80c8f5b97c499f84c841032e429f", [:mix], [], "hexpm", "1b1dbc1790073076580d0d1d64e42eae2366583e7aecd455d1215b0d16f2451b"},
   "comeonin": {:hex, :comeonin, "5.3.3", "2c564dac95a35650e9b6acfe6d2952083d8a08e4a89b93a481acb552b325892e", [:mix], [], "hexpm", "3e38c9c2cb080828116597ca8807bb482618a315bfafd98c90bc22a821cc84df"},
@@ -22,7 +22,7 @@
   "csv": {:hex, :csv, "2.5.0", "c47b5a5221bf2e56d6e8eb79e77884046d7fd516280dc7d9b674251e0ae46246", [:mix], [{:parallel_stream, "~> 1.0.4 or ~> 1.1.0", [hex: :parallel_stream, repo: "hexpm", optional: false]}], "hexpm", "e821f541487045c7591a1963eeb42afff0dfa99bdcdbeb3410795a2f59c77d34"},
   "currency_formatter": {:hex, :currency_formatter, "0.8.1", "ab410d520713ba3a5b56eaf4ef944471df67c870dd0e5cd5a9f7e22f9b634777", [:mix], [{:phoenix_html, ">= 0.0.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:poison, "~> 3.1.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm", "e1aafb0c2eba8d63d0d1055e118a674f8b60bd1095d86a701a9732803e410214"},
   "db_connection": {:hex, :db_connection, "2.4.3", "3b9aac9f27347ec65b271847e6baeb4443d8474289bd18c1d6f4de655b70c94d", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "c127c15b0fa6cfb32eed07465e05da6c815b032508d4ed7c116122871df73c12"},
-  "decimal": {:hex, :decimal, "2.0.0", "a78296e617b0f5dd4c6caf57c714431347912ffb1d0842e998e9792b5642d697", [:mix], [], "hexpm", "34666e9c55dea81013e77d9d87370fe6cb6291d1ef32f46a1600230b1d44f577"},
+  "decimal": {:hex, :decimal, "2.1.1", "5611dca5d4b2c3dd497dec8f68751f1f1a54755e8ed2a966c2633cf885973ad6", [:mix], [], "hexpm", "53cfe5f497ed0e7771ae1a475575603d77425099ba5faef9394932b35020ffcc"},
   "dialyxir": {:hex, :dialyxir, "1.2.0", "58344b3e87c2e7095304c81a9ae65cb68b613e28340690dfe1a5597fd08dec37", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "61072136427a851674cab81762be4dbeae7679f85b1272b6d25c3a839aff8463"},
   "digital_token": {:hex, :digital_token, "0.4.0", "2ad6894d4a40be8b2890aad286ecd5745fa473fa5699d80361a8c94428edcd1f", [:mix], [{:cldr_utils, "~> 2.17", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "a178edf61d1fee5bb3c34e14b0f4ee21809ee87cade8738f87337e59e5e66e26"},
   "dns": {:hex, :dns, "2.2.0", "4721a79c2bccc25481930dffbfd06f40851321c3d679986af307111214bf124c", [:mix], [{:socket, "~> 0.3.13", [hex: :socket, repo: "hexpm", optional: false]}], "hexpm", "13ed1ef36ce896211ec6ce5e02709dbfb12aa61d6255bda8d531577a0a5a56e0"},
@@ -34,8 +34,8 @@
   "elixir_make": {:hex, :elixir_make, "0.7.6", "67716309dc5d43e16b5abbd00c01b8df6a0c2ab54a8f595468035a50189f9169", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "5a0569756b0f7873a77687800c164cca6dfc03a09418e6fcf853d78991f49940"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "esbuild": {:hex, :esbuild, "0.7.0", "ce3afb13cd2c5fd63e13c0e2d0e0831487a97a7696cfa563707342bb825d122a", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "4ae9f4f237c5ebcb001390b8ada65a12fb2bb04f3fe3d1f1692b7a06fbfe8752"},
-  "ex_aws": {:hex, :ex_aws, "2.4.2", "d2686c34b69287cc8dd7629e70131aec05fef3cd3eae13698c9422933f7bc9ee", [:mix], [{:configparser_ex, "~> 4.0", [hex: :configparser_ex, repo: "hexpm", optional: true]}, {:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: true]}, {:jsx, "~> 2.8 or ~> 3.0", [hex: :jsx, repo: "hexpm", optional: true]}, {:mime, "~> 1.2 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:sweet_xml, "~> 0.7", [hex: :sweet_xml, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "0a2c07bd1541b0bef315f67e050d3cb9f947ab1a281896a8c35e3ee4976889f6"},
-  "ex_aws_s3": {:hex, :ex_aws_s3, "2.4.0", "ce8decb6b523381812798396bc0e3aaa62282e1b40520125d1f4eff4abdff0f4", [:mix], [{:ex_aws, "~> 2.0", [hex: :ex_aws, repo: "hexpm", optional: false]}, {:sweet_xml, ">= 0.0.0", [hex: :sweet_xml, repo: "hexpm", optional: true]}], "hexpm", "85dda6e27754d94582869d39cba3241d9ea60b6aa4167f9c88e309dc687e56bb"},
+  "ex_aws": {:hex, :ex_aws, "2.4.4", "d7886eaca7e10f7bd3d9e9d2d5414cb336737b3ab2fddd4fa30358b725293fe0", [:mix], [{:configparser_ex, "~> 4.0", [hex: :configparser_ex, repo: "hexpm", optional: true]}, {:hackney, "~> 1.16", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: true]}, {:jsx, "~> 2.8 or ~> 3.0", [hex: :jsx, repo: "hexpm", optional: true]}, {:mime, "~> 1.2 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:sweet_xml, "~> 0.7", [hex: :sweet_xml, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "a7d63e485ca2b16fb804f3f20097827aa69885eea6e69fa75c98f353c9c91dc7"},
+  "ex_aws_s3": {:hex, :ex_aws_s3, "2.5.0", "9fab3312a58edcfe5392928349605be03414d024a2e530c1202c22ffe77e5352", [:mix], [{:ex_aws, "~> 2.0", [hex: :ex_aws, repo: "hexpm", optional: false]}, {:sweet_xml, ">= 0.0.0", [hex: :sweet_xml, repo: "hexpm", optional: true]}], "hexpm", "e6928abe9e04224293c1d7d3eef8df901f0ef4cf6e3125aa1f2b0d2911022ba6"},
   "ex_cldr": {:hex, :ex_cldr, "2.36.0", "ccd7c61c4126aa42d3cd9d93097642930f1b8a10c9c8351fc58bb2c627bad839", [:mix], [{:cldr_utils, "~> 2.21", [hex: :cldr_utils, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:gettext, "~> 0.19", [hex: :gettext, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: true]}], "hexpm", "5a56c66cd61ebde42277baa828cd1587959b781ac7e2aee135328a78a4de3fe9"},
   "ex_cldr_calendars": {:hex, :ex_cldr_calendars, "1.21.0", "5f3c71a145926cfa7f8691aa3566921957543f635ec345e52282c613e8985ba8", [:mix], [{:calendar_interval, "~> 0.2", [hex: :calendar_interval, repo: "hexpm", optional: true]}, {:ex_cldr_lists, "~> 2.10", [hex: :ex_cldr_lists, repo: "hexpm", optional: true]}, {:ex_cldr_numbers, "~> 2.25", [hex: :ex_cldr_numbers, repo: "hexpm", optional: false]}, {:ex_cldr_units, "~> 3.12", [hex: :ex_cldr_units, repo: "hexpm", optional: true]}, {:ex_doc, "~> 0.21", [hex: :ex_doc, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "8ce8737b70f9c36828324995f96464a1a4c87cf2f76e5868e20662ca31c4098f"},
   "ex_cldr_currencies": {:hex, :ex_cldr_currencies, "2.15.0", "aadd34e91cfac7ef6b03fe8f47f8c6fa8c5daf3f89b5d9fee64ec545ded839cf", [:mix], [{:ex_cldr, "~> 2.34", [hex: :ex_cldr, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "0521316396c66877a2d636219767560bb2397c583341fcb154ecf9f3000e6ff8"},
@@ -51,13 +51,13 @@
   "floki": {:hex, :floki, "0.34.2", "5fad07ef153b3b8ec110b6b155ec3780c4b2c4906297d0b4be1a7162d04a7e02", [:mix], [], "hexpm", "26b9d50f0f01796bc6be611ca815c5e0de034d2128e39cc9702eee6b66a4d1c8"},
   "gen_stage": {:hex, :gen_stage, "1.2.1", "19d8b5e9a5996d813b8245338a28246307fd8b9c99d1237de199d21efc4c76a1", [:mix], [], "hexpm", "83e8be657fa05b992ffa6ac1e3af6d57aa50aace8f691fcf696ff02f8335b001"},
   "gettext": {:hex, :gettext, "0.22.1", "e7942988383c3d9eed4bdc22fc63e712b655ae94a672a27e4900e3d4a2c43581", [:mix], [{:expo, "~> 0.4.0", [hex: :expo, repo: "hexpm", optional: false]}], "hexpm", "ad105b8dab668ee3f90c0d3d94ba75e9aead27a62495c101d94f2657a190ac5d"},
-  "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
+  "hackney": {:hex, :hackney, "1.19.1", "59de4716e985dd2b5cbd4954fa1ae187e2b610a9c4520ffcb0b1653c3d6e5559", [:rebar3], [{:certifi, "~> 2.12.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~> 6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~> 1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~> 1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.4.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~> 1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "8aa08234bdefc269995c63c2282cf3cd0e36febe3a6bfab11b610572fdd1cad0"},
   "hpack": {:hex, :hpack_erl, "0.2.3", "17670f83ff984ae6cd74b1c456edde906d27ff013740ee4d9efaa4f1bf999633", [:rebar3], [], "hexpm", "06f580167c4b8b8a6429040df36cc93bba6d571faeaec1b28816523379cbb23a"},
   "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
   "html_entities": {:hex, :html_entities, "0.5.2", "9e47e70598da7de2a9ff6af8758399251db6dbb7eebe2b013f2bbd2515895c3c", [:mix], [], "hexpm", "c53ba390403485615623b9531e97696f076ed415e8d8058b1dbaa28181f4fdcc"},
   "httpoison": {:hex, :httpoison, "1.8.2", "9eb9c63ae289296a544842ef816a85d881d4a31f518a0fec089aaa744beae290", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "2bb350d26972e30c96e2ca74a1aaf8293d61d0742ff17f01e0279fef11599921"},
   "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
-  "jason": {:hex, :jason, "1.4.0", "e855647bc964a44e2f67df589ccf49105ae039d4179db7f6271dfd3843dc27e6", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "79a3791085b2a0f743ca04cec0f7be26443738779d09302e01318f97bdb82121"},
+  "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
   "joken": {:hex, :joken, "2.6.0", "b9dd9b6d52e3e6fcb6c65e151ad38bf4bc286382b5b6f97079c47ade6b1bcc6a", [:mix], [{:jose, "~> 1.11.5", [hex: :jose, repo: "hexpm", optional: false]}], "hexpm", "5a95b05a71cd0b54abd35378aeb1d487a23a52c324fa7efdffc512b655b5aaa7"},
   "jose": {:hex, :jose, "1.11.5", "3bc2d75ffa5e2c941ca93e5696b54978323191988eb8d225c2e663ddfefd515e", [:mix, :rebar3], [], "hexpm", "dcd3b215bafe02ea7c5b23dafd3eb8062a5cd8f2d904fd9caa323d37034ab384"},
   "kadabra": {:hex, :kadabra, "0.6.0", "8d8de886802f38d86d2c250eb9416e3208b5e4b78ce8409b40b4d57f21d21fc9", [:mix], [{:certifi, "~> 2.5", [hex: :certifi, repo: "hexpm", optional: false]}, {:hpack, "~> 0.2.3", [hex: :hpack_erl, repo: "hexpm", optional: false]}], "hexpm", "0cdaf72fc6205cba62da9e49ee6b24b7c50adb6d9f8b0e92b4b1847959371403"},
@@ -68,7 +68,7 @@
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
-  "mime": {:hex, :mime, "2.0.3", "3676436d3d1f7b81b5a2d2bd8405f412c677558c81b1c92be58c00562bb59095", [:mix], [], "hexpm", "27a30bf0db44d25eecba73755acf4068cbfe26a4372f9eb3e4ea3a45956bff6b"},
+  "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
   "mint": {:hex, :mint, "1.4.2", "50330223429a6e1260b2ca5415f69b0ab086141bc76dc2fbf34d7c389a6675b2", [:mix], [{:castore, "~> 0.1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "ce75a5bbcc59b4d7d8d70f8b2fc284b1751ffb35c7b6a6302b5192f8ab4ddd80"},
   "mox": {:hex, :mox, "1.0.2", "dc2057289ac478b35760ba74165b4b3f402f68803dd5aecd3bfd19c183815d64", [:mix], [], "hexpm", "f9864921b3aaf763c8741b5b8e6f908f44566f1e427b2630e89e9a73b981fef2"},
@@ -77,7 +77,7 @@
   "oban": {:hex, :oban, "2.13.6", "a0cb1bce3bd393770512231fb5a3695fa19fd3af10d7575bf73f837aee7abf43", [:mix], [{:ecto_sql, "~> 3.6", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.16", [hex: :postgrex, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "3c1c5eb16f377b3cbbf2ea14be24d20e3d91285af9d1ac86260b7c2af5464887"},
   "parallel_stream": {:hex, :parallel_stream, "1.1.0", "f52f73eb344bc22de335992377413138405796e0d0ad99d995d9977ac29f1ca9", [:mix], [], "hexpm", "684fd19191aedfaf387bbabbeb8ff3c752f0220c8112eb907d797f4592d6e871"},
   "parent": {:hex, :parent, "0.12.1", "495c4386f06de0df492e0a7a7199c10323a55e9e933b27222060dd86dccd6d62", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "2ab589ef1f37bfcedbfb5ecfbab93354972fb7391201b8907a866dadd20b39d1"},
-  "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
+  "parse_trans": {:hex, :parse_trans, "3.4.1", "6e6aa8167cb44cc8f39441d05193be6e6f4e7c2946cb2759f015f8c56b76e5ff", [:rebar3], [], "hexpm", "620a406ce75dada827b82e453c19cf06776be266f5a67cff34e1ef2cbb60e49a"},
   "phoenix": {:hex, :phoenix, "1.7.2", "c375ffb482beb4e3d20894f84dd7920442884f5f5b70b9f4528cbe0cedefec63", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.4", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "1ebca94b32b4d0e097ab2444a9742ed8ff3361acad17365e4e6b2e79b4792159"},
   "phoenix_ecto": {:hex, :phoenix_ecto, "4.4.0", "0672ed4e4808b3fbed494dded89958e22fb882de47a97634c0b13e7b0b5f7720", [:mix], [{:ecto, "~> 3.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "09864e558ed31ee00bd48fcc1d4fc58ae9678c9e81649075431e69dbabb43cc1"},
   "phoenix_html": {:hex, :phoenix_html, "3.3.1", "4788757e804a30baac6b3fc9695bf5562465dd3f1da8eb8460ad5b404d9a2178", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "bed1906edd4906a15fd7b412b85b05e521e1f67c9a85418c55999277e553d0d3"},
@@ -99,11 +99,11 @@
   "sentry": {:hex, :sentry, "8.1.0", "8d235b62fce5f8e067ea1644e30939405b71a5e1599d9529ff82899d11d03f2b", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: true]}, {:plug, "~> 1.6", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_cowboy, "~> 2.3", [hex: :plug_cowboy, repo: "hexpm", optional: true]}], "hexpm", "f9fc7641ef61e885510f5e5963c2948b9de1de597c63f781e9d3d6c9c8681ab4"},
   "socket": {:hex, :socket, "0.3.13", "98a2ab20ce17f95fb512c5cadddba32b57273e0d2dba2d2e5f976c5969d0c632", [:mix], [], "hexpm", "f82ea9833ef49dde272e6568ab8aac657a636acb4cf44a7de8a935acb8957c2e"},
   "sourceror": {:hex, :sourceror, "0.12.2", "2ae55efd149193572e0eb723df7c7a1bda9ab33c43373c82642931dbb2f4e428", [:mix], [], "hexpm", "7ad74ade6fb079c71f29fae10c34bcf2323542d8c51ee1bcd77a546cfa89d59c"},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.7", "354c321cf377240c7b8716899e182ce4890c5938111a1296add3ec74cf1715df", [:make, :mix, :rebar3], [], "hexpm", "fe4c190e8f37401d30167c8c405eda19469f34577987c76dde613e838bbc67f8"},
   "statistics": {:hex, :statistics, "0.6.2", "213dcedc2b3ae7fb775b5510ea9630c66d3c0019ea2f86d5096559853623a60d", [:mix], [], "hexpm", "329f1008dc4ad24430d94c04b52ff09d5fb435ab11f34360831f11eb0c391c17"},
   "surface": {:hex, :surface, "0.10.0", "54eeb1bc7d3e411e3cbd1074237f4369afb24c4e3177ba26f6aaf62336533197", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.18.18", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:sourceror, "~> 0.11", [hex: :sourceror, repo: "hexpm", optional: false]}], "hexpm", "2cbf3217c1184980a058edc33f9fd8e47c67ebe0c46c2c6448e663eee095dc82"},
   "surface_catalogue": {:hex, :surface_catalogue, "0.5.2", "2ca7179bc157910dd76e6167489f8186b1ec36aeba3ec1606fb8c85e7c75ff20", [:mix], [{:earmark, "~>1.4.21", [hex: :earmark, repo: "hexpm", optional: false]}, {:esbuild, "~> 0.2", [hex: :esbuild, repo: "hexpm", optional: false]}, {:html_entities, "~> 0.4", [hex: :html_entities, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.16.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}, {:surface, "~>0.8.0 or ~>0.9.0", [hex: :surface, repo: "hexpm", optional: false]}], "hexpm", "53ca6fa8e5fc6f375ca9ab422ac8ac507b942681bd3c44defbfd20ecae968723"},
-  "sweet_xml": {:hex, :sweet_xml, "0.7.3", "debb256781c75ff6a8c5cbf7981146312b66f044a2898f453709a53e5031b45b", [:mix], [], "hexpm", "e110c867a1b3fe74bfc7dd9893aa851f0eed5518d0d7cad76d7baafd30e4f5ba"},
+  "sweet_xml": {:hex, :sweet_xml, "0.7.4", "a8b7e1ce7ecd775c7e8a65d501bc2cd933bff3a9c41ab763f5105688ef485d08", [:mix], [], "hexpm", "e7c4b0bdbf460c928234951def54fe87edf1a170f6896675443279e2dbeba167"},
   "table_rex": {:hex, :table_rex, "3.0.0", "5189b71b3b92ed461358f40f7b7b630dc37716bf6c8ab3e934b2bc63a99028bd", [:mix], [], "hexpm", "582776d24cbe6a4d30a39a7f02035b1bc979b6cd64923d7234dd2f0ad21a18c7"},
   "tailwind": {:hex, :tailwind, "0.2.1", "83d8eadbe71a8e8f67861fe7f8d51658ecfb258387123afe4d9dc194eddc36b0", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "e8a13f6107c95f73e58ed1b4221744e1eb5a093cd1da244432067e19c8c9a277"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
diff --git a/core/systems/feldspar/s3.ex b/core/systems/feldspar/s3.ex
new file mode 100644
index 000000000..257393cc2
--- /dev/null
+++ b/core/systems/feldspar/s3.ex
@@ -0,0 +1,69 @@
+defmodule Systems.Feldspar.S3 do
+  alias ExAws.S3
+
+  def store(zip_file) do
+    id = Ecto.UUID.generate()
+    :ok = upload_zip_content(zip_file, id)
+    id
+  end
+
+  def get_public_url(id) do
+    settings = s3_settings()
+    public_url = Access.get(settings, :public_url)
+    "#{public_url}/#{object_key(id)}/index.html"
+  end
+
+  def remove(id) do
+    bucket = Access.fetch!(s3_settings(), :bucket)
+
+    objects =
+      S3.list_objects_v2(bucket, prefix: object_key(id))
+      |> backend().request!()
+      |> get_in([:body, :contents])
+      |> Enum.map(&Access.fetch!(&1, :key))
+
+    S3.delete_all_objects(bucket, objects)
+    |> backend().request!()
+
+    :ok
+  end
+
+  defp upload_zip_content(zip_file, target) do
+    settings = s3_settings()
+
+    {:ok, zip_handle} = :zip.zip_open(to_charlist(zip_file), [:memory])
+
+    upload_file = fn file ->
+      {:ok, {_, data}} = :zip.zip_get(file, zip_handle)
+
+      S3.put_object(
+        Access.fetch!(settings, :bucket),
+        "#{object_key(target)}/#{file}",
+        data
+      )
+      |> backend().request!()
+    end
+
+    # Read the zip file names and skip the comment (first item)
+    {:ok, [_ | contents]} = :zip.zip_list_dir(zip_handle)
+
+    contents
+    |> Enum.map(fn {:zip_file, file, _, _, _, _} -> file end)
+    |> Task.async_stream(upload_file, max_concurrency: 10)
+    |> Stream.run()
+  end
+
+  defp object_key(id) do
+    prefix = Access.get(s3_settings(), :prefix, "")
+    "#{prefix}#{id}"
+  end
+
+  defp s3_settings do
+    Application.fetch_env!(:core, :feldspar)
+  end
+
+  defp backend do
+    # Allow mocking
+    Access.get(s3_settings(), :s3_backend, ExAws)
+  end
+end
diff --git a/core/test/systems/feldspar/s3_test.exs b/core/test/systems/feldspar/s3_test.exs
new file mode 100644
index 000000000..34bcecaa3
--- /dev/null
+++ b/core/test/systems/feldspar/s3_test.exs
@@ -0,0 +1,77 @@
+defmodule Systems.Feldspar.S3Test do
+  use ExUnit.Case, async: true
+  import Mox
+  alias Systems.Feldspar.S3
+
+  setup :verify_on_exit!
+
+  setup do
+    initial_config = Application.get_env(:core, :feldspar)
+
+    Application.put_env(:core, :feldspar,
+      backend: Systems.Feldspar.S3,
+      bucket: "test-bucket",
+      public_url: "http://example.com",
+      s3_backend: MockAws
+    )
+
+    on_exit(fn ->
+      Application.put_env(:core, :feldspar, initial_config)
+    end)
+
+    :ok
+  end
+
+  describe "store/1" do
+    test "extracts zip and stores files on disk" do
+      expect(MockAws, :request!, fn args ->
+        assert %ExAws.Operation.S3{
+                 bucket: "test-bucket",
+                 http_method: :put,
+                 body: "Hello World!"
+               } = args
+      end)
+
+      id = S3.store(Path.join(__DIR__, "hello.zip"))
+      assert is_binary(id)
+      refute id == ""
+    end
+  end
+
+  describe "get_public_url/1" do
+    test "returns URL" do
+      id = Ecto.UUID.generate()
+      url = S3.get_public_url(id)
+      assert "http://example.com/#{id}/index.html" == url
+    end
+  end
+
+  describe "remove/1" do
+    test "removes folder" do
+      id = Ecto.UUID.generate()
+
+      expect(MockAws, :request!, 2, fn args ->
+        case args do
+          %{params: %{"list-type" => 2, "prefix" => ^id}} ->
+            %{
+              body: %{
+                contents: [
+                  %{key: "some-thing.html"}
+                ]
+              }
+            }
+
+          %ExAws.Operation.S3DeleteAllObjects{
+            bucket: "test-bucket",
+            objects: objects,
+            opts: [],
+            service: :s3
+          } ->
+            assert objects == ["some-thing.html"]
+        end
+      end)
+
+      assert :ok == S3.remove(id)
+    end
+  end
+end
diff --git a/core/test/test_helper.exs b/core/test/test_helper.exs
index 3f9832da4..2b2934be9 100644
--- a/core/test/test_helper.exs
+++ b/core/test/test_helper.exs
@@ -1,6 +1,8 @@
 ExUnit.start()
 Ecto.Adapters.SQL.Sandbox.mode(Core.Repo, :manual)
 
+Mox.defmock(MockAws, for: ExAws.Behaviour)
+
 Mox.defmock(Core.WebPush.MockBackend, for: Core.WebPush.Backend)
 Application.put_env(:core, :web_push_backend, Core.WebPush.MockBackend)