diff --git a/flake.nix b/flake.nix
index 8e0c895..bea248d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -104,10 +104,11 @@
       })
       (_: _: {deploy-rs-pkg = null;})
       (_: super: {
+        inherit (super.callPackage ./pkgs/compress-drv.nix {}) compressDrvWeb;
+
         tmuxbash = super.callPackage ./pkgs/tmuxbash.nix {};
         nicer = super.callPackage ./pkgs/nicer.nix {};
         gamja = super.callPackage ./pkgs/gamja.nix {};
-        compressAll = super.callPackage ./pkgs/compress-all.nix {};
       })
     ];
   in
diff --git a/hosts/vno1-oh2/configuration.nix b/hosts/vno1-oh2/configuration.nix
index 4efd83f..75629bd 100644
--- a/hosts/vno1-oh2/configuration.nix
+++ b/hosts/vno1-oh2/configuration.nix
@@ -299,7 +299,7 @@
           redir https://jakstys.lt
         '';
         "irc.jakstys.lt".extraConfig = let
-          gamja = pkgs.compressAll (pkgs.gamja.override {
+          gamja = pkgs.compressDrvWeb (pkgs.gamja.override {
             gamjaConfig = {
               server = {
                 url = "irc.jakstys.lt:6698";
diff --git a/modules/services/gitea/default.nix b/modules/services/gitea/default.nix
index d05e002..fe9e53a 100644
--- a/modules/services/gitea/default.nix
+++ b/modules/services/gitea/default.nix
@@ -78,7 +78,7 @@
           route /static/assets/* {
             uri strip_prefix /static/assets
             file_server * {
-              root ${pkgs.compressAll pkgs.gitea.data {}}/public
+              root ${pkgs.compressDrvWeb pkgs.gitea.data {}}/public
               precompressed br gzip
             }
           }
diff --git a/pkgs/compress-all.nix b/pkgs/compress-all.nix
deleted file mode 100644
index 47a34de..0000000
--- a/pkgs/compress-all.nix
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
-compress-all compresses files in a given derivation.
-
-Useful when one wants to pre-compress certain static assets and pass them to
-the web server. For example, `pkgs.gamja` creates this derivation:
-
-    /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/
-    ├── index.2fd01148.js
-    ├── index.2fd01148.js.map
-    ├── index.37aa9a8a.css
-    ├── index.37aa9a8a.css.map
-    ├── index.html
-    └── manifest.webmanifest
-
-`pkgs.compressAll pkgs.gamja`:
-
-    /nix/store/f5ryid7zrw2hid7h9kil5g5j29q5r2f7-gamja-1.0.0-beta.9-compressed
-    ├── index.2fd01148.js -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.2fd01148.js
-    ├── index.2fd01148.js.br
-    ├── index.2fd01148.js.gz
-    ├── index.2fd01148.js.map -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.2fd01148.js.map
-    ├── index.2fd01148.js.map.br
-    ├── index.2fd01148.js.map.gz
-    ├── index.37aa9a8a.css -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.37aa9a8a.css
-    ├── index.37aa9a8a.css.br
-    ├── index.37aa9a8a.css.gz
-    ├── index.37aa9a8a.css.map -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.37aa9a8a.css.map
-    ├── index.37aa9a8a.css.map.br
-    ├── index.37aa9a8a.css.map.gz
-    ├── index.html -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.html
-    ├── index.html.br
-    ├── index.html.gz
-    ├── manifest.webmanifest -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/manifest.webmanifest
-    ├── manifest.webmanifest.br
-    └── manifest.webmanifest.gz
-
-
-When this `-compressed` directory is passed to a properly configured web
-server, it will serve those pre-compressed files:
-
-    $ curl -I -H 'Accept-Encoding: br' https://irc.example.org/
-    <...>
-    content-encoding: br
-    <...>
-
-For example, a caddy configuration snippet for gamja to serve
-the static assets (JS, CSS files) pre-compressed:
-
-    virtualHosts."irc.example.org".extraConfig = ''
-      root * ${pkgs.compressAll pkgs.gamja {}}
-      file_server browse {
-          precompressed br gzip
-      }
-    '';
-
-This feature is also available in nginx via `ngx_brotli` and
-`ngx_http_gzip_static_module`.
-
-
-Inputs:
-- formats :: [String]
-
-    The default list of file extensions to compress.
-
-    Default: common formats that compress well. The list may be appended (but
-    not reduced) without warning.
-
-- extraFormats :: [String]
-
-    Extra extensions to compress in addition to `extensions`.
-
-- compressors :: [String]
-
-    A list of compressor names to use.
-
-    Default: ["gz" "br"]
-
-- compressor-<COMPRESSOR> :: String
-
-    Maps a desired extension (e.g. `gz`) to a compress program (e.g. `zopfli
-    --keep {}`).
-
-    The compressor program that will be executed to get the `COMPRESSOR`
-    extension. The program is passed to xargs like this:
-
-      xargs -I{} -n1 ${prog}
-
-    Example:
-
-      compressor-xz = "${xz}/bin/xz --keep {}";
-      compressor-zst = "${zstd}/bin/zstd --keep {}";
-*/
-{
-  lib,
-  runCommand,
-  xorg,
-  zopfli,
-  brotli,
-}: drv: {
-  formats ? ["css" "js" "svg" "ttf" "eot" "txt" "xml" "map" "html" "json" "webmanifest"],
-  extraFormats ? [],
-  compressors ? ["gz" "br"],
-  ...
-} @ args: let
-  compressorMap =
-    {
-      compressor-gz = "${zopfli}/bin/zopfli --keep {}";
-      compressor-br = "${brotli}/bin/brotli --keep --no-copy-stat {}";
-    }
-    // lib.filterAttrs (k: _: (lib.hasPrefix "compressor-" k)) args;
-  compressCommands =
-    map
-    (ext: let
-      prog = builtins.getAttr "compressor-${ext}" compressorMap;
-    in "tee >(xargs -I{} -n1 -P$NIX_BUILD_CORES ${prog})")
-    compressors;
-  formatsbar = builtins.concatStringsSep "|" (formats ++ extraFormats);
-in
-  runCommand "${drv.name}-compressed" {} ''
-    mkdir $out
-    ${xorg.lndir}/bin/lndir ${drv}/ $out/
-
-    find -L $out -type f -regextype posix-extended \
-      -iregex '.*\.(${formatsbar})' | \
-        ${builtins.concatStringsSep " | \\\n    " compressCommands}
-  ''
diff --git a/pkgs/compress-drv.nix b/pkgs/compress-drv.nix
new file mode 100644
index 0000000..4e54db8
--- /dev/null
+++ b/pkgs/compress-drv.nix
@@ -0,0 +1,172 @@
+{
+  lib,
+  runCommand,
+  xorg,
+  zopfli,
+  brotli,
+}: let
+  compressDrv = drv: {
+    formats,
+    compressors,
+    ...
+  } @ args: let
+    compressorMap = lib.filterAttrs (k: _: (lib.hasPrefix "compressor-" k)) args;
+    compressCommands =
+      map
+      (ext: let
+        prog = builtins.getAttr "compressor-${ext}" compressorMap;
+      in "tee >(xargs -I{} -n1 -P$NIX_BUILD_CORES ${prog})")
+      compressors;
+    formatsbar = builtins.concatStringsSep "|" formats;
+  in
+    runCommand "${drv.name}-compressed" {} ''
+      mkdir $out
+      ${xorg.lndir}/bin/lndir ${drv}/ $out/
+
+      find -L $out -type f -regextype posix-extended \
+        -iregex '.*\.(${formatsbar})' | \
+          ${builtins.concatStringsSep " | \\\n    " compressCommands}
+    '';
+in {
+  /*
+  compressDrv compresses files in a given derivation.
+
+  Inputs:
+
+  - formats :: [String]
+
+      List of file extensions to compress.
+
+      Example: ["txt" "svg" "xml"]
+
+  - compressors :: [String]
+
+      A list of compressor names to use. Each element will need to have
+      an associated compressor in the same arguments (see below).
+
+      Example: ["gz" "zstd"]
+
+  - compressor-<COMPRESSOR> :: String
+
+      Map a desired extension (e.g. `gz`) to a compress program.
+
+      The compressor program that will be executed to get the `COMPRESSOR`
+      extension. The program is passed to xargs like this:
+
+        xargs -I{} -n1 ${prog}
+
+      Example:
+
+        compressor-xz = "${xz}/bin/xz --keep {}";
+
+   See compressDrvWeb, which is a wrapper on top of compressDrv, for broader
+   use examples.
+  */
+  inherit (compressDrv);
+
+  /*
+  compressDrvWeb compresses a derivation for "web server" usage.
+
+  Useful when one wants to pre-compress certain static assets and pass them to
+  the web server. For example, `pkgs.gamja` creates this derivation:
+
+      /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/
+      ├── index.2fd01148.js
+      ├── index.2fd01148.js.map
+      ├── index.37aa9a8a.css
+      ├── index.37aa9a8a.css.map
+      ├── index.html
+      └── manifest.webmanifest
+
+  `pkgs.compressDrvWeb pkgs.gamja`:
+
+      /nix/store/f5ryid7zrw2hid7h9kil5g5j29q5r2f7-gamja-1.0.0-beta.9-compressed
+      ├── index.2fd01148.js -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.2fd01148.js
+      ├── index.2fd01148.js.br
+      ├── index.2fd01148.js.gz
+      ├── index.2fd01148.js.map -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.2fd01148.js.map
+      ├── index.2fd01148.js.map.br
+      ├── index.2fd01148.js.map.gz
+      ├── index.37aa9a8a.css -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.37aa9a8a.css
+      ├── index.37aa9a8a.css.br
+      ├── index.37aa9a8a.css.gz
+      ├── index.37aa9a8a.css.map -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.37aa9a8a.css.map
+      ├── index.37aa9a8a.css.map.br
+      ├── index.37aa9a8a.css.map.gz
+      ├── index.html -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/index.html
+      ├── index.html.br
+      ├── index.html.gz
+      ├── manifest.webmanifest -> /nix/store/2wn1qbk8gp4y2m8xvafxv1b2dcdqj8fz-gamja-1.0.0-beta.9/manifest.webmanifest
+      ├── manifest.webmanifest.br
+      └── manifest.webmanifest.gz
+
+
+  When this `-compressed` directory is passed to a properly configured web
+  server, it will serve those pre-compressed files:
+
+      $ curl -I -H 'Accept-Encoding: br' https://irc.example.org/
+      <...>
+      content-encoding: br
+      <...>
+
+  For example, a caddy configuration snippet for gamja to serve
+  the static assets (JS, CSS files) pre-compressed:
+
+      virtualHosts."irc.example.org".extraConfig = ''
+        root * ${pkgs.compressDrvWeb pkgs.gamja {}}
+        file_server browse {
+            precompressed br gzip
+        }
+      '';
+
+  This feature is also available in nginx via `ngx_brotli` and
+  `ngx_http_gzip_static_module`.
+
+  Inputs:
+  - formats :: [String]
+
+      List of file extensions to compress.
+
+      Default: common formats that compress well. The list may be appended
+      expanded.
+
+  - extraFormats :: [String]
+
+      Extra extensions to compress in addition to `formats`.
+
+  - compressors :: [String]
+
+      A list of compressor names to use. Each element will need to have
+      an associated compressor in the same arguments (see below).
+
+      Default: ["gz" "br"]
+
+  - compressor-<COMPRESSOR> :: String
+
+      Map a desired extension (e.g. `gz`) to a compress program.
+
+      The compressor program that will be executed to get the `COMPRESSOR`
+      extension. The program is passed to xargs like this:
+
+        xargs -I{} -n1 ${prog}
+
+      Default:
+
+        compressor-gz = "${zopfli}/bin/zopfli --keep {}";
+        compressor-br = "${brotli}/bin/brotli --keep --no-copy-stat {}";
+  */
+
+  compressDrvWeb = drv: {
+    formats ? ["css" "js" "svg" "ttf" "eot" "txt" "xml" "map" "html" "json" "webmanifest"],
+    extraFormats ? [],
+    compressors ? ["gz" "br"],
+    ...
+  } @ args:
+    compressDrv drv ({
+        formats = formats ++ extraFormats;
+        compressors = compressors;
+        compressor-gz = "${zopfli}/bin/zopfli --keep {}";
+        compressor-br = "${brotli}/bin/brotli --keep --no-copy-stat {}";
+      }
+      // lib.filterAttrs (k: _: (lib.hasPrefix "compressor-" k)) args);
+}
diff --git a/statix.toml b/statix.toml
index c2c0666..0b220fd 100644
--- a/statix.toml
+++ b/statix.toml
@@ -1 +1,11 @@
 ignore = ['modules/base/boot']
+
+# If the attrset has an optional field, `inherit` will not inherit it:
+#  compressDrvWeb = drv: {
+#    compressors ? ["gz" "br"],
+#    ...
+#  } @ args:
+#    compressDrv drv {
+#        inherit (compressors) <<- function 'compressDrv' called without required argument 'compressors'
+#    }
+disabled = ["manual_inherit"]