diff --git a/flake.lock b/flake.lock
index 080c212..e86674e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -14,11 +14,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754337839,
-        "narHash": "sha256-fEc2/4YsJwtnLU7HCFMRckb0u9UNnDZmwGhXT5U5NTw=",
+        "lastModified": 1754433428,
+        "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,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "lastModified": 1747046372,
+        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754091436,
-        "narHash": "sha256-XKqDMN1/Qj1DKivQvscI4vmHfDfvYR2pfuFOJiCeewM=",
+        "lastModified": 1756770412,
+        "narHash": "sha256-+uWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "67df8c627c2c39c41dbec76a1f201929929ab0bd",
+        "rev": "4524271976b625a4a605beefd893f270620fd751",
         "type": "github"
       },
       "original": {
@@ -117,11 +117,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750779888,
-        "narHash": "sha256-wibppH3g/E2lxU43ZQHC5yA/7kIKLGxVEnsnVK1BtRg=",
+        "lastModified": 1755960406,
+        "narHash": "sha256-RF7j6C1TmSTK9tYWO6CdEMtg6XZaUKcvZwOCD2SICZs=",
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "16ec914f6fb6f599ce988427d9d94efddf25fe6d",
+        "rev": "e891a93b193fcaf2fc8012d890dc7f0befe86ec2",
         "type": "github"
       },
       "original": {
@@ -159,11 +159,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1754365350,
-        "narHash": "sha256-NLWIkn1qM0wxtZu/2NXRaujWJ4Y1PSZlc7h0y6pOzOQ=",
+        "lastModified": 1756954499,
+        "narHash": "sha256-Pg4xBHzvzNY8l9x/rLWoJMnIR8ebG+xeU+IyqThIkqU=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "c5d7e957397ecb7d48b99c928611c6e780db1b56",
+        "rev": "ed1a98c375450dfccf427adacd2bfd1a7b22eb25",
         "type": "github"
       },
       "original": {
@@ -175,11 +175,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1754372978,
-        "narHash": "sha256-ByII9p9ek0k9UADC/hT+i9ueM2mw0Zxiz+bOlydU6Oo=",
+        "lastModified": 1756936398,
+        "narHash": "sha256-/o1TTpMIICpjrMHBilL9lYm/r69uhdK1L8j1pfY6tWU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9ebe222ec7ef9de52478f76cba3f0324c1d1119f",
+        "rev": "47f28ad9378956563df9a884fd1b209b64336ba3",
         "type": "github"
       },
       "original": {
diff --git a/hosts/homes/ambroisie@bazin/default.nix b/hosts/homes/ambroisie@bazin/default.nix
index 365b70d..cfeba83 100644
--- a/hosts/homes/ambroisie@bazin/default.nix
+++ b/hosts/homes/ambroisie@bazin/default.nix
@@ -29,6 +29,8 @@
       terminalFeatures = {
         # HTerm uses `xterm-256color` as its `$TERM`, so use that here
         xterm-256color = { };
+        # Terminal app uses `xterm.js`, not HTerm
+        "xterm.js" = { };
       };
     };
 
diff --git a/hosts/homes/ambroisie@mousqueton/default.nix b/hosts/homes/ambroisie@mousqueton/default.nix
index 1383618..b6193c9 100644
--- a/hosts/homes/ambroisie@mousqueton/default.nix
+++ b/hosts/homes/ambroisie@mousqueton/default.nix
@@ -35,6 +35,8 @@
       terminalFeatures = {
         # HTerm uses `xterm-256color` as its `$TERM`, so use that here
         xterm-256color = { };
+        # Terminal app uses `xterm.js`, not HTerm
+        "xterm.js" = { };
       };
     };
   };
diff --git a/hosts/nixos/aramis/home.nix b/hosts/nixos/aramis/home.nix
index 221b1ea..7bf6fe2 100644
--- a/hosts/nixos/aramis/home.nix
+++ b/hosts/nixos/aramis/home.nix
@@ -18,16 +18,16 @@
     # Machine specific packages
     packages.additionalPackages = with pkgs; [
       element-desktop # Matrix client
-      jellyfin-media-player # Wraps the webui and mpv together
       pavucontrol # Audio mixer GUI
-      trgui-ng # Transmission remote
     ];
     # Minimal video player
     mpv.enable = true;
     # Network-Manager applet
     nm-applet.enable = true;
     # Terminal
-    terminal.program = "alacritty";
+    terminal.default = "alacritty";
+    # Transmission remote
+    trgui.enable = true;
     # Zathura document viewer
     zathura.enable = true;
   };
diff --git a/modules/home/atuin/default.nix b/modules/home/atuin/default.nix
index dbd9690..40d2b04 100644
--- a/modules/home/atuin/default.nix
+++ b/modules/home/atuin/default.nix
@@ -6,7 +6,6 @@ in
   options.my.home.atuin = with lib; {
     enable = my.mkDisableOption "atuin configuration";
 
-    # I want the full experience by default
     package = mkPackageOption pkgs "atuin" { };
 
     daemon = {
diff --git a/modules/home/default.nix b/modules/home/default.nix
index 1c40377..ad3b979 100644
--- a/modules/home/default.nix
+++ b/modules/home/default.nix
@@ -38,6 +38,7 @@
     ./ssh
     ./terminal
     ./tmux
+    ./trgui
     ./udiskie
     ./vim
     ./wget
diff --git a/modules/home/delta/default.nix b/modules/home/delta/default.nix
index 58ee031..16d3d59 100644
--- a/modules/home/delta/default.nix
+++ b/modules/home/delta/default.nix
@@ -1,6 +1,9 @@
 { config, pkgs, lib, ... }:
 let
   cfg = config.my.home.delta;
+
+  configFormat = pkgs.formats.gitIni { };
+  configPath = "${config.xdg.configHome}/delta/config";
 in
 {
   options.my.home.delta = with lib; {
@@ -34,35 +37,43 @@ in
 
     home.packages = [ cfg.package ];
 
+    xdg.configFile."delta/config".source = configFormat.generate "delta-config" {
+      delta = {
+        features = "diff-highlight decorations";
+
+        # Less jarring style for `diff-highlight` emulation
+        diff-highlight = {
+          minus-style = "red";
+          minus-non-emph-style = "red";
+          minus-emph-style = "bold red 52";
+
+          plus-style = "green";
+          plus-non-emph-style = "green";
+          plus-emph-style = "bold green 22";
+
+          whitespace-error-style = "reverse red";
+        };
+
+        # Personal preference for easier reading
+        decorations = {
+          commit-style = "raw"; # Do not recolor meta information
+          keep-plus-minus-markers = true;
+          paging = "always";
+        };
+      };
+    };
+
     programs.git = lib.mkIf cfg.git.enable {
       delta = {
         enable = true;
         inherit (cfg) package;
-
-        options = {
-          features = "diff-highlight decorations";
-
-          # Less jarring style for `diff-highlight` emulation
-          diff-highlight = {
-            minus-style = "red";
-            minus-non-emph-style = "red";
-            minus-emph-style = "bold red 52";
-
-            plus-style = "green";
-            plus-non-emph-style = "green";
-            plus-emph-style = "bold green 22";
-
-            whitespace-error-style = "reverse red";
-          };
-
-          # Personal preference for easier reading
-          decorations = {
-            commit-style = "raw"; # Do not recolor meta information
-            keep-plus-minus-markers = true;
-            paging = "always";
-          };
-        };
       };
+
+      includes = [
+        {
+          path = configPath;
+        }
+      ];
     };
   };
 }
diff --git a/modules/home/firefox/tridactyl/default.nix b/modules/home/firefox/tridactyl/default.nix
index 26ddfad..cd377e5 100644
--- a/modules/home/firefox/tridactyl/default.nix
+++ b/modules/home/firefox/tridactyl/default.nix
@@ -2,7 +2,7 @@
 let
   cfg = config.my.home.firefox.tridactyl;
 
-  term = config.my.home.terminal.program;
+  term = config.my.home.terminal.default;
 
   vimCommandLine = {
     alacritty = ''-e "vim" "%f" "+normal!%lGzv%c|"'';
diff --git a/modules/home/nix/default.nix b/modules/home/nix/default.nix
index c67cc6a..2f435a8 100644
--- a/modules/home/nix/default.nix
+++ b/modules/home/nix/default.nix
@@ -69,7 +69,7 @@ in
         automatic = true;
 
         # Every week, with some wiggle room
-        frequency = "weekly";
+        dates = "weekly";
         randomizedDelaySec = "10min";
 
         # Use a persistent timer for e.g: laptops
diff --git a/modules/home/ssh/default.nix b/modules/home/ssh/default.nix
index 748b195..b0b4167 100644
--- a/modules/home/ssh/default.nix
+++ b/modules/home/ssh/default.nix
@@ -17,6 +17,7 @@ in
     {
       programs.ssh = {
         enable = true;
+        enableDefaultConfig = false;
 
         includes = [
           # Local configuration, not-versioned
@@ -53,11 +54,12 @@ in
             identityFile = "~/.ssh/shared_rsa";
             user = "ambroisie";
           };
-        };
 
-        extraConfig = ''
-          AddKeysToAgent yes
-        '';
+          # `*` is automatically made the last match block by the module
+          "*" = {
+            addKeysToAgent = "yes";
+          };
+        };
       };
     }
 
diff --git a/modules/home/terminal/alacritty/default.nix b/modules/home/terminal/alacritty/default.nix
index daf3e80..7d3e1d8 100644
--- a/modules/home/terminal/alacritty/default.nix
+++ b/modules/home/terminal/alacritty/default.nix
@@ -1,9 +1,16 @@
 { config, lib, ... }:
 let
-  cfg = config.my.home.terminal;
+  cfg = config.my.home.terminal.alacritty;
+  inherit (config.my.home.terminal) colors;
 in
 {
-  config = lib.mkIf (cfg.program == "alacritty") {
+  options.my.home.terminal.alacritty = with lib; {
+    enable = lib.mkEnableOption "alacritty" // {
+      default = config.my.home.terminal.default == "alacritty";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
     programs.alacritty = {
       enable = true;
 
@@ -14,36 +21,36 @@ in
 
         colors = {
           primary = {
-            background = cfg.colors.background;
-            foreground = cfg.colors.foreground;
+            background = colors.background;
+            foreground = colors.foreground;
 
-            bright_foreground = cfg.colors.foregroundBold;
+            bright_foreground = colors.foregroundBold;
           };
 
           cursor = {
-            cursor = cfg.colors.cursor;
+            cursor = colors.cursor;
           };
 
           normal = {
-            black = cfg.colors.black;
-            red = cfg.colors.red;
-            green = cfg.colors.green;
-            yellow = cfg.colors.yellow;
-            blue = cfg.colors.blue;
-            magenta = cfg.colors.magenta;
-            cyan = cfg.colors.cyan;
-            white = cfg.colors.white;
+            black = colors.black;
+            red = colors.red;
+            green = colors.green;
+            yellow = colors.yellow;
+            blue = colors.blue;
+            magenta = colors.magenta;
+            cyan = colors.cyan;
+            white = colors.white;
           };
 
           bright = {
-            black = cfg.colors.blackBold;
-            red = cfg.colors.redBold;
-            green = cfg.colors.greenBold;
-            yellow = cfg.colors.yellowBold;
-            blue = cfg.colors.blueBold;
-            magenta = cfg.colors.magentaBold;
-            cyan = cfg.colors.cyanBold;
-            white = cfg.colors.whiteBold;
+            black = colors.blackBold;
+            red = colors.redBold;
+            green = colors.greenBold;
+            yellow = colors.yellowBold;
+            blue = colors.blueBold;
+            magenta = colors.magentaBold;
+            cyan = colors.cyanBold;
+            white = colors.whiteBold;
           };
         };
       };
diff --git a/modules/home/terminal/default.nix b/modules/home/terminal/default.nix
index 20f36b5..72694d2 100644
--- a/modules/home/terminal/default.nix
+++ b/modules/home/terminal/default.nix
@@ -16,11 +16,11 @@ in
 
   options.my.home = with lib; {
     terminal = {
-      program = mkOption {
+      default = mkOption {
         type = with types; nullOr (enum [ "alacritty" "termite" ]);
         default = null;
         example = "termite";
-        description = "Which terminal to use for home session";
+        description = "Which default terminal to use for home session";
       };
 
       colors = {
@@ -56,7 +56,7 @@ in
     };
   };
 
-  config.home.sessionVariables = lib.mkIf (cfg.program != null) {
-    TERMINAL = cfg.program;
+  config.home.sessionVariables = lib.mkIf (cfg.default != null) {
+    TERMINAL = cfg.default;
   };
 }
diff --git a/modules/home/terminal/termite/default.nix b/modules/home/terminal/termite/default.nix
index e8f67a7..f130029 100644
--- a/modules/home/terminal/termite/default.nix
+++ b/modules/home/terminal/termite/default.nix
@@ -1,9 +1,16 @@
 { config, lib, pkgs, ... }:
 let
-  cfg = config.my.home.terminal;
+  cfg = config.my.home.terminal.termite;
+  inherit (config.my.home.terminal) colors;
 in
 {
-  config = lib.mkIf (cfg.program == "termite") {
+  options.my.home.terminal.termite = with lib; {
+    enable = lib.mkEnableOption "termite" // {
+      default = config.my.home.terminal.default == "termite";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
     programs.termite = {
       enable = true;
 
@@ -24,11 +31,11 @@ in
 
 
       # Colors
-      backgroundColor = cfg.colors.background;
-      cursorColor = cfg.colors.cursor;
-      foregroundColor = cfg.colors.foreground;
-      foregroundBoldColor = cfg.colors.foregroundBold;
-      colorsExtra = with cfg.colors; ''
+      backgroundColor = colors.background;
+      cursorColor = colors.cursor;
+      foregroundColor = colors.foreground;
+      foregroundBoldColor = colors.foregroundBold;
+      colorsExtra = with colors; ''
         # Normal colors
         color0 = ${black}
         color1 = ${red}
diff --git a/modules/home/tmux/default.nix b/modules/home/tmux/default.nix
index 3ea047a..6a4d371 100644
--- a/modules/home/tmux/default.nix
+++ b/modules/home/tmux/default.nix
@@ -6,13 +6,16 @@ let
     (config.my.home.wm.windowManager != null)
   ];
 
-  mkTerminalFeature = opt: flag:
+  mkTerminalFlag = tmuxVar: opt: flag:
     let
-      mkFlag = term: ''set -as terminal-features ",${term}:${flag}"'';
+      mkFlag = term: ''set -as ${tmuxVar} ",${term}:${flag}"'';
       enabledTerminals = lib.filterAttrs (_: v: v.${opt}) cfg.terminalFeatures;
       terminals = lib.attrNames enabledTerminals;
     in
     lib.concatMapStringsSep "\n" mkFlag terminals;
+
+  mkTerminalFeature = mkTerminalFlag "terminal-features";
+  mkTerminalOverride = mkTerminalFlag "terminal-overrides";
 in
 {
   options.my.home.tmux = with lib; {
@@ -28,12 +31,14 @@ in
           hyperlinks = my.mkDisableOption "hyperlinks through OSC8";
 
           trueColor = my.mkDisableOption "24-bit (RGB) color support";
+
+          underscoreStyle = my.mkDisableOption "underscore style/color support";
         };
       });
 
-      default = { ${config.my.home.terminal.program} = { }; };
+      default = { ${config.my.home.terminal.default} = { }; };
       defaultText = literalExpression ''
-        { ''${config.my.home.terminal.program} = { }; };
+        { ''${config.my.home.terminal.default} = { }; };
       '';
       example = { xterm-256color = { }; };
       description = ''
@@ -54,6 +59,20 @@ in
     terminal = "tmux-256color"; # I want accurate termcap info
     aggressiveResize = true; # Automatic resize when switching client size
 
+    # FIXME
+    # * Sixel support
+    # * OSC 133 prompt integration
+    # FIXME: when sensible-on-top is disabled: check if any of those are unset
+    # * tmux bind-key $prefix_without_ctrl last-window
+    # *
+    # * tmux bind-key C-b send-prefix: included
+    # * aggressive resize? done
+    # * tmux bind-key C-p previous-window: done
+    # * tmux bind-key C-n next-window: done
+    # * C-r to refresh my config: done
+    # * tmux set-option -g focus-events on: done
+
+    # FIXME: make PRs for `bind-key` description
     plugins = with pkgs.tmuxPlugins; builtins.filter (attr: attr != { }) [
       # Open high-lighted files in copy mode
       open
@@ -61,8 +80,8 @@ 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 +90,8 @@ 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
@@ -126,6 +145,11 @@ in
       ${mkTerminalFeature "hyperlinks" "hyperlinks"}
       # Force 24-bit color for each relevant $TERM
       ${mkTerminalFeature "trueColor" "RGB"}
+      # Force underscore style/color for each relevant $TERM
+      ${mkTerminalFeature "underscoreStyle" "usstyle"}
+      # FIXME: see https://github.com/folke/tokyonight.nvim#fix-undercurls-in-tmux for additional overrides
+      # ${mkTerminalOverride "underscoreStyle" "Smulx=\\E[4::%p1%dm"}
+      # ${mkTerminalOverride "underscoreStyle" "Setulc=\\E[58::2::::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m"}
     '';
   };
 }
diff --git a/modules/home/trgui/default.nix b/modules/home/trgui/default.nix
new file mode 100644
index 0000000..ee545a9
--- /dev/null
+++ b/modules/home/trgui/default.nix
@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.home.trgui;
+in
+{
+  options.my.home.trgui = with lib; {
+    enable = mkEnableOption "Transmission GUI onfiguration";
+
+    package = mkPackageOption pkgs "TrguiNG" { default = "trgui-ng"; };
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = with pkgs; [
+      cfg.package
+    ];
+  };
+}
diff --git a/modules/home/wm/i3/default.nix b/modules/home/wm/i3/default.nix
index 5f22bbe..564aead 100644
--- a/modules/home/wm/i3/default.nix
+++ b/modules/home/wm/i3/default.nix
@@ -3,8 +3,8 @@ let
   isEnabled = config.my.home.wm.windowManager == "i3";
 
   terminal =
-    if config.my.home.terminal.program != null
-    then config.my.home.terminal.program
+    if config.my.home.terminal.default != null
+    then config.my.home.terminal.default
     else "i3-sensible-terminal";
 
   alt = "Mod1"; # `Alt` key
diff --git a/modules/home/wm/rofi/default.nix b/modules/home/wm/rofi/default.nix
index 9707ed7..d0e0215 100644
--- a/modules/home/wm/rofi/default.nix
+++ b/modules/home/wm/rofi/default.nix
@@ -7,7 +7,7 @@ in
     programs.rofi = {
       enable = true;
 
-      terminal = config.my.home.terminal.program; # null by default
+      terminal = config.my.home.terminal.default; # null by default
 
       package = pkgs.rofi.override {
         plugins = with pkgs; [
diff --git a/modules/home/xdg/default.nix b/modules/home/xdg/default.nix
index 803167f..7a0c517 100644
--- a/modules/home/xdg/default.nix
+++ b/modules/home/xdg/default.nix
@@ -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;
 }
diff --git a/modules/nixos/profiles/x/default.nix b/modules/nixos/profiles/x/default.nix
index ea77939..874f36f 100644
--- a/modules/nixos/profiles/x/default.nix
+++ b/modules/nixos/profiles/x/default.nix
@@ -13,7 +13,7 @@ in
     # Nice wallpaper
     services.xserver.displayManager.lightdm.background =
       let
-        wallpapers = "${pkgs.plasma5Packages.plasma-workspace-wallpapers}/share/wallpapers";
+        wallpapers = "${pkgs.kdePackages.plasma-workspace-wallpapers}/share/wallpapers";
       in
       "${wallpapers}/summer_1am/contents/images/2560x1600.jpg";