NOTE ABOUT XDG-TERMINAL

At the moment this only makes a difference for `dircolors`.

flake.lock

@@ -14,11 +14,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754337839,
+        "lastModified": 1754433428,
-        "narHash": "sha256-fEc2/4YsJwtnLU7HCFMRckb0u9UNnDZmwGhXT5U5NTw=",
+        "narHash": "sha256-NA/FT2hVhKDftbHSwVnoRTFhes62+7dxZbxj5Gxvghs=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "856df6f6922845abd4fd958ce21febc07ca2fa45",
+        "rev": "9edb1787864c4f59ae5074ad498b6272b3ec308d",
         "type": "github"
       },
       "original": {
@@ -53,11 +53,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1696426674,
+        "lastModified": 1747046372,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754091436,
+        "lastModified": 1754487366,
-        "narHash": "sha256-XKqDMN1/Qj1DKivQvscI4vmHfDfvYR2pfuFOJiCeewM=",
+        "narHash": "sha256-pHYj8gUBapuUzKV/kN/tR3Zvqc7o6gdFB9XKXIp1SQ8=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "67df8c627c2c39c41dbec76a1f201929929ab0bd",
+        "rev": "af66ad14b28a127c5c0f3bbb298218fc63528a18",
         "type": "github"
       },
       "original": {
@@ -117,11 +117,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750779888,
+        "lastModified": 1754416808,
-        "narHash": "sha256-wibppH3g/E2lxU43ZQHC5yA/7kIKLGxVEnsnVK1BtRg=",
+        "narHash": "sha256-c6yg0EQ9xVESx6HGDOCMcyRSjaTpNJP10ef+6fRcofA=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "16ec914f6fb6f599ce988427d9d94efddf25fe6d",
+        "rev": "9c52372878df6911f9afc1e2a1391f55e4dfc864",
         "type": "github"
       },
       "original": {
@@ -159,11 +159,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754365350,
+        "lastModified": 1754886238,
-        "narHash": "sha256-NLWIkn1qM0wxtZu/2NXRaujWJ4Y1PSZlc7h0y6pOzOQ=",
+        "narHash": "sha256-LTQomWOwG70lZR+78ZYSZ9sYELWNq3HJ7/tdHzfif/s=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "c5d7e957397ecb7d48b99c928611c6e780db1b56",
+        "rev": "0d492b89d1993579e63b9dbdaed17fd7824834da",
         "type": "github"
       },
       "original": {
@@ -175,11 +175,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1754372978,
+        "lastModified": 1754725699,
-        "narHash": "sha256-ByII9p9ek0k9UADC/hT+i9ueM2mw0Zxiz+bOlydU6Oo=",
+        "narHash": "sha256-iAcj9T/Y+3DBy2J0N+yF9XQQQ8IEb5swLFzs23CdP88=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9ebe222ec7ef9de52478f76cba3f0324c1d1119f",
+        "rev": "85dbfc7aaf52ecb755f87e577ddbe6dbbdbc1054",
         "type": "github"
       },
       "original": {

hosts/homes/ambroisie@bazin/default.nix

@@ -38,6 +38,14 @@
       };
     };
 
+    xdg = {
+      mime-apps = {
+        applications = {
+          browser = "garcon_host_browser.desktop";
+        };
+      };
+    };
+
     zsh = {
       notify = {
         enable = true;

modules/home/discord/default.nix

@@ -21,5 +21,9 @@ in
         # Do not keep me from using the app just to force an update
         SKIP_HOST_UPDATE = true;
       };
+
+    xdg.mimeApps.defaultApplications = {
+      "x-scheme-handler/discord" = "discord.desktop";
+    };
   };
 }

modules/home/feh/default.nix

@@ -10,4 +10,11 @@ in
   config.programs.feh = lib.mkIf cfg.enable {
     enable = true;
   };
+
+  config.my.home.xdg.mime-apps = lib.mkIf cfg.enable {
+    applications.media.image = {
+      bitmap = "feh.desktop";
+      vector = "feh.desktop";
+    };
+  };
 }

modules/home/firefox/default.nix

@@ -79,4 +79,8 @@ in
       };
     };
   };
+
+  config.my.home.xdg.mime-apps = lib.mkIf cfg.enable {
+    applications.browser = "firefox.desktop";
+  };
 }

modules/home/mail/himalaya/default.nix

@@ -20,4 +20,8 @@ in
         '';
     };
   };
+
+  config.my.home.xdg.mime-apps = lib.mkIf cfg.enable {
+    applications.editor = "himalaya.desktop";
+  };
 }

modules/home/mpv/default.nix

@@ -17,5 +17,12 @@ in
         pkgs.mpvScripts.uosc # Nicer UI
       ];
     };
+
+    my.home.xdg.mime-apps = {
+      applications.media = {
+        audio = "mpv.desktop";
+        video = "mpv.desktop";
+      };
+    };
   };
 }

modules/home/terminal/alacritty/default.nix

@@ -48,5 +48,9 @@ in
         };
       };
     };
+
+    my.home.xdg.mime-apps = {
+      applications.terminal = "Alacritty.desktop";
+    };
   };
 }

modules/home/terminal/termite/default.nix

@@ -49,5 +49,9 @@ in
         color15 = ${whiteBold}
       '';
     };
+
+    my.home.xdg.mime-apps = {
+      applications.terminal = "termite.desktop";
+    };
   };
 }

modules/home/tmux/default.nix

@@ -61,8 +61,8 @@ in
       pain-control
       # Better session management
       sessionist
+      # X clipboard integration
       {
-        # X clipboard integration
         plugin = yank;
         extraConfig = ''
           # Use 'clipboard' because of misbehaving apps (e.g: firefox)
@@ -71,8 +71,8 @@ in
           set -g @yank_action 'copy-pipe'
         '';
       }
+      # Show when prefix has been pressed
       {
-        # Show when prefix has been pressed
         plugin = prefix-highlight;
         extraConfig = ''
           # Also show when I'm in copy or sync mode

modules/home/vim/default.nix

@@ -104,4 +104,8 @@ in
   };
 
   config.xdg.configFile = lib.mkIf cfg.enable configFiles;
+
+  config.my.home.xdg.mime-apps = lib.mkIf cfg.enable {
+    applications.editor = "nvim.desktop";
+  };
 }

modules/home/xdg/default.nix

@@ -3,6 +3,10 @@ let
   cfg = config.my.home.xdg;
 in
 {
+  imports = [
+    ./mime-apps.nix
+  ];
+
   options.my.home.xdg = with lib; {
     enable = my.mkDisableOption "XDG configuration";
   };
@@ -11,10 +15,6 @@ in
     enable = true;
     # File types
     mime.enable = true;
-    # File associations
-    mimeApps = {
-      enable = true;
-    };
     # User directories
     userDirs = {
       enable = true;
@@ -56,4 +56,7 @@ in
     XCOMPOSECACHE = "${dataHome}/X11/xcompose";
     _JAVA_OPTIONS = "-Djava.util.prefs.userRoot=${configHome}/java";
   };
+
+  # Some modules *optionally* use `XDG_*_HOME` when told to
+  config.home.preferXdgDirectories = lib.mkIf cfg.enable true;
 }

modules/home/xdg/mime-apps.nix

@@ -0,0 +1,280 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.home.xdg.mime-apps;
+  app = cfg.applications;
+
+  mkMimeAppOption = kind: lib.mkOption {
+    description = "Application to associate as ${kind}";
+    default = null;
+    type = with lib.types; nullOr str;
+  };
+in
+{
+  options.my.home.xdg.mime-apps = with lib; {
+    enable = mkEnableOption "XDG MIME Applications configuration" // {
+      default = config.my.home.xdg.enable;
+    };
+
+    applications = lib.mapAttrsRecursive (_: mkMimeAppOption) {
+      archive = "archive manager";
+      browser = "internet browser";
+      calendar = "calendar";
+      editor = "text editor";
+      fileManager = "file manager";
+      mail = "mail client";
+      media = {
+        audio = "audio player";
+        document = {
+          comic = "comic book reader";
+          ebook = "ebook reader";
+          pdf = "PDF reader";
+        };
+        image = {
+          bitmap = "bitmap image viewer";
+          vector = "vector image viewer";
+          editor = "image editor";
+        };
+        video = "video player";
+      };
+      office = {
+        database = "database management program";
+        formula = "formula editor";
+        graphics = "graphics editor";
+        presentation = "presentation editor";
+        spreadsheet = "spreadsheet editor";
+        text = "word processor";
+      };
+      terminal = "terminal"; # FIXME: should it also set `xdg.terminal-exec.settings.default`?
+      torrent = "bittorrent client";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    xdg = {
+      mimeApps = {
+        enable = true;
+        defaultApplications = lib.filterAttrs (_: apps: apps != null) {
+          "application/epub+zip" = app.media.document.ebook;
+          "application/gzip" = app.archive;
+          "application/json" = app.editor;
+          "application/ld+json" = app.editor;
+          "application/mxf " = app.media.video;
+          "application/ogg" = app.media.audio;
+          "application/pdf" = app.media.document.pdf;
+          "application/rss+xml" = app.editor;
+          "application/smil+xml " = app.media.video;
+          "application/vnd.amazon.ebook" = app.media.document.ebook;
+          "application/vnd.apple.mpegurl " = app.media.video;
+          "application/vnd.comicbook+zip" = app.media.document.comic;
+          "application/vnd.comicbook-rar" = app.media.document.comic;
+          "application/vnd.mozilla.xul+xml" = app.browser;
+          "application/vnd.ms-excel" = app.office.spreadsheet;
+          "application/vnd.ms-powerpoint" = app.office.presentation;
+          "application/vnd.ms-word" = app.office.text;
+          "application/vnd.oasis.opendocument.database" = app.office.database;
+          "application/vnd.oasis.opendocument.formula" = app.office.formula;
+          "application/vnd.oasis.opendocument.graphics" = app.office.graphics;
+          "application/vnd.oasis.opendocument.graphics-template" = app.office.graphics;
+          "application/vnd.oasis.opendocument.presentation" = app.office.presentation;
+          "application/vnd.oasis.opendocument.presentation-template" = app.office.presentation;
+          "application/vnd.oasis.opendocument.spreadsheet" = app.office.spreadsheet;
+          "application/vnd.oasis.opendocument.spreadsheet-template" = app.office.spreadsheet;
+          "application/vnd.oasis.opendocument.text" = app.office.text;
+          "application/vnd.oasis.opendocument.text-master" = app.office.text;
+          "application/vnd.oasis.opendocument.text-template" = app.office.text;
+          "application/vnd.oasis.opendocument.text-web" = app.office.text;
+          "application/vnd.openxmlformats-officedocument.presentationml.presentation" = app.office.presentation;
+          "application/vnd.openxmlformats-officedocument.presentationml.template" = app.office.presentation;
+          "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" = app.office.spreadsheet;
+          "application/vnd.openxmlformats-officedocument.spreadsheetml.template" = app.office.spreadsheet;
+          "application/vnd.openxmlformats-officedocument.wordprocessingml.document" = app.office.text;
+          "application/vnd.openxmlformats-officedocument.wordprocessingml.template" = app.office.text;
+          "application/vnd.rar" = app.archive;
+          "application/vnd.stardivision.calc" = app.office.spreadsheet;
+          "application/vnd.stardivision.draw" = app.office.graphics;
+          "application/vnd.stardivision.impress" = app.office.presentation;
+          "application/vnd.stardivision.math" = app.office.formula;
+          "application/vnd.stardivision.writer" = app.office.text;
+          "application/vnd.sun.xml.base" = app.office.database;
+          "application/vnd.sun.xml.calc" = app.office.spreadsheet;
+          "application/vnd.sun.xml.calc.template" = app.office.spreadsheet;
+          "application/vnd.sun.xml.draw" = app.office.graphics;
+          "application/vnd.sun.xml.draw.template" = app.office.graphics;
+          "application/vnd.sun.xml.impress" = app.office.presentation;
+          "application/vnd.sun.xml.impress.template" = app.office.presentation;
+          "application/vnd.sun.xml.math" = app.office.formula;
+          "application/vnd.sun.xml.writer" = app.office.text;
+          "application/vnd.sun.xml.writer.global" = app.office.text;
+          "application/vnd.sun.xml.writer.template" = app.office.text;
+          "application/vnd.wordperfect" = app.office.text;
+          "application/x-7z-compressed" = app.archive;
+          "application/x-arj" = app.archive;
+          "application/x-bittorrent" = app.torrent;
+          "application/x-bzip" = app.archive;
+          "application/x-bzip-compressed-tar" = app.archive;
+          "application/x-bzip2" = app.archive;
+          "application/x-cb7" = app.media.document.comic;
+          "application/x-cbr" = app.media.document.comic;
+          "application/x-cbt" = app.media.document.comic;
+          "application/x-cbz" = app.media.document.comic;
+          "application/x-compress" = app.archive;
+          "application/x-compressed-tar" = app.archive;
+          "application/x-csh" = app.editor;
+          "application/x-cue" = app.media.audio;
+          "application/x-directory" = app.fileManager;
+          "application/x-extension-htm" = app.browser;
+          "application/x-extension-html" = app.browser;
+          "application/x-extension-ics" = app.calendar;
+          "application/x-extension-m4a" = app.media.audio;
+          "application/x-extension-mp4" = app.media.video;
+          "application/x-extension-shtml" = app.browser;
+          "application/x-extension-xht" = app.browser;
+          "application/x-extension-xhtml" = app.browser;
+          "application/x-fictionbook" = app.media.document.ebook;
+          "application/x-fictionbook+xml" = app.media.document.ebook;
+          "application/x-flac" = app.media.audio;
+          "application/x-gzip" = app.archive;
+          "application/x-lha" = app.archive;
+          "application/x-lhz" = app.archive;
+          "application/x-lzop" = app.archive;
+          "application/x-matroska" = app.media.video;
+          "application/x-netshow-channel" = app.media.video;
+          "application/x-quicktime-media-link" = app.media.video;
+          "application/x-quicktimeplayer" = app.media.video;
+          "application/x-rar" = app.archive;
+          "application/x-sh" = app.editor;
+          "application/x-shellscript" = app.editor;
+          "application/x-shorten " = app.media.audio;
+          "application/x-smil" = app.media.video;
+          "application/x-tar" = app.archive;
+          "application/x-tarz" = app.archive;
+          "application/x-wine-extension-ini" = app.editor;
+          "application/x-zip-compressed" = app.archive;
+          "application/x-zoo" = app.archive;
+          "application/xhtml+xml" = app.browser;
+          "application/xml" = app.editor;
+          "application/zip" = app.archive;
+          "audio/*" = app.media.video;
+          "image/*" = app.media.image.bitmap;
+          "image/svg+xml" = app.media.image.vector;
+          "image/x-compressed-xcf" = app.media.image.editor;
+          "image/x-fits" = app.media.image.editor;
+          "image/x-psd" = app.media.image.editor;
+          "image/x-xcf" = app.media.image.editor;
+          "inode/directory" = app.fileManager;
+          "message/rfc822" = app.mail;
+          "text/*" = app.editor;
+          "text/calendar" = app.calendar;
+          "text/html" = app.browser;
+          "text/plain" = app.editor;
+          "video/*" = app.media.video;
+          "x-scheme-handler/about" = app.browser;
+          "x-scheme-handler/chrome" = app.browser;
+          "x-scheme-handler/file" = app.fileManager;
+          "x-scheme-handler/ftp" = app.browser;
+          "x-scheme-handler/http" = app.browser;
+          "x-scheme-handler/https" = app.browser;
+          "x-scheme-handler/mailto" = app.mail;
+          "x-scheme-handler/mid" = app.mail;
+          "x-scheme-handler/terminal" = app.terminal;
+          "x-scheme-handler/unknown" = app.browser;
+          "x-scheme-handler/webcal" = app.calendar;
+          "x-scheme-handler/webcals" = app.calendar;
+          "x-www-browser" = app.browser;
+
+          # FIXME: relevant? https://bbs.archlinux.org/viewtopic.php?id=243125
+
+          # FIXME: shouldn't be necessary then
+          # "audio/AMR" = app.media.audio;
+          # "audio/aac" = app.media.audio;
+          # "audio/ac3" = app.media.audio;
+          # "audio/flac" = app.media.audio;
+          # "audio/mp2" = app.media.audio;
+          # "audio/mp4" = app.media.audio;
+          # "audio/mpeg" = app.media.audio;
+          # "audio/ogg" = app.media.audio;
+          # "audio/vnd.dts" = app.media.audio;
+          # "audio/vnd.dts.hd" = app.media.audio;
+          # "audio/vnd.rn-realaudio" = app.media.audio;
+          # "audio/webm" = app.media.audio;
+          # "audio/x-adpcm" = app.media.audio;
+          # "audio/x-aiff" = app.media.audio;
+          # "audio/x-ape" = app.media.audio;
+          # "audio/x-matroska" = app.media.audio;
+          # "audio/x-mpegurl" = app.media.audio;
+          # "audio/x-ms-asx" = app.media.audio;
+          # "audio/x-ms-wma" = app.media.audio;
+          # "audio/x-musepack" = app.media.audio;
+          # "audio/x-scpls" = app.media.audio;
+          # "audio/x-tta" = app.media.audio;
+          # "audio/x-vorbis+ogg" = app.media.audio;
+          # "audio/x-wav" = app.media.audio;
+          # "audio/x-wavpack" = app.media.audio;
+          # "image/bmp" = app.media.image.bitmap;
+          # "image/gif" = app.media.image.bitmap;
+          # "image/heif" = app.media.image.bitmap;
+          # "image/jpeg" = app.media.image.bitmap;
+          # "image/jpg" = app.media.image.bitmap;
+          # "image/pjpeg" = app.media.image.bitmap;
+          # "image/png" = app.media.image.bitmap;
+          # "image/tiff" = app.media.image.bitmap;
+          # "image/vnd.zbrush.pcx" = app.media.image.bitmap;
+          # "image/webp" = app.media.image.bitmap;
+          # "image/x-icb" = app.media.image.bitmap;
+          # "image/x-ico" = app.media.image.bitmap;
+          # "image/x-pcx" = app.media.image.bitmap;
+          # "image/x-portable-anymap" = app.media.image.bitmap;
+          # "image/x-portable-bitmap" = app.media.image.bitmap;
+          # "image/x-portable-graymap" = app.media.image.bitmap;
+          # "image/x-portable-pixmap" = app.media.image.bitmap;
+          # "image/x-tga" = app.media.image.bitmap;
+          # "image/x-xbitmap" = app.media.image.bitmap;
+          # "image/x-xpixmap" = app.media.image.bitmap;
+          # "image/x-xwindowdump" = app.media.image.bitmap;
+          # "text/tcl" = app.editor;
+          # "text/x-c++hdr" = app.editor;
+          # "text/x-c++src" = app.editor;
+          # "text/x-chdr" = app.editor;
+          # "text/x-csrc" = app.editor;
+          # "text/x-java" = app.editor;
+          # "text/x-makefile" = app.editor;
+          # "text/x-moc" = app.editor;
+          # "text/x-pascal" = app.editor;
+          # "text/x-tex" = app.editor;
+          # "video/3gpp" = app.media.video;
+          # "video/3gpp2" = app.media.video;
+          # "video/dv" = app.media.video;
+          # "video/mp2t" = app.media.video;
+          # "video/mp4" = app.media.video;
+          # "video/mpeg" = app.media.video;
+          # "video/ogg" = app.media.video;
+          # "video/quicktime" = app.media.video;
+          # "video/vnd.mpegurl" = app.media.video;
+          # "video/vnd.rn-realvideo" = app.media.video;
+          # "video/webm" = app.media.video;
+          # "video/x-flic" = app.media.video;
+          # "video/x-flv" = app.media.video;
+          # "video/x-matroska" = app.media.video;
+          # "video/x-ms-wmv" = app.media.video;
+          # "video/x-msvideo" = app.media.video;
+          # "video/x-ogm+ogg" = app.media.video;
+          # "video/x-theora+ogg" = app.media.video;
+
+          # FIXME: kind of weird formats, not quite adapted to attribute name
+          # "application/eps" = app.media.document.pdf
+          # "application/oxps" = app.media.document.pdf
+          # "application/postscript" = app.media.document.pdf
+          # "application/x-eps" = app.media.document.pdf
+          # "image/eps" = app.media.document.pdf
+          # "image/vnd.djvu" = app.media.document.pdf
+          # "image/vnd.djvu+multipage" = app.media.document.pdf
+          # "image/x-eps" = app.media.document.pdf
+
+          # FIXME: additionally interesting, but not necessary
+          # "x-scheme-handler/msteams" = [ "teams.desktop" ];
+          # "x-scheme-handler/slack" = [ "slack.desktop" ];
+        };
+      };
+    };
+  };
+}

modules/home/zathura/default.nix

@@ -17,4 +17,12 @@ in
       "statusbar-home-tilde" = true;
     };
   };
+
+  config.my.home.xdg.mime-apps = lib.mkIf cfg.enable {
+    applications.media.document = {
+      comic = "org.pwmt.zathura.desktop";
+      ebook = "org.pwmt.zathura.desktop";
+      pdf = "org.pwmt.zathura.desktop";
+    };
+  };
 }