WIP: ADD NOTE FOR FUTURE SELF

Otherwise it keeps nagging me with a hint to set it.

I'm not a big fan of this UI, I wish I add something closer to Git's
patch interface.

flake.lock

@@ -159,11 +159,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1760969583,
-        "narHash": "sha256-vsf5mvR0xxK4GsfLx5bMJAQ4ysdrKymMIifNw+4TP7g=",
+        "lastModified": 1761530345,
+        "narHash": "sha256-+9+YCK9Lh6GThkXu/8JTxMFUnImIdZpb8ElUh6/F5Y8=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "c9d758b500e53db5b74aa02d17dc45b65229e8e9",
+        "rev": "bbaeb9f1c29e79bb1653b32c3d73244cdf4bd888",
         "type": "github"
       },
       "original": {
@@ -175,11 +175,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1760878510,
-        "narHash": "sha256-K5Osef2qexezUfs0alLvZ7nQFTGS9DL2oTVsIXsqLgs=",
+        "lastModified": 1761373498,
+        "narHash": "sha256-Q/uhWNvd7V7k1H1ZPMy/vkx3F8C13ZcdrKjO7Jv7v0c=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5e2a59a5b1a82f89f2c7e598302a9cacebb72a67",
+        "rev": "6a08e6bb4e46ff7fcbb53d409b253f6bad8a28ce",
         "type": "github"
       },
       "original": {

hosts/homes/ambroisie@bazin/default.nix

@@ -22,6 +22,10 @@
       package = pkgs.emptyDirectory;
     };
 
+    jujutsu = {
+      package = pkgs.emptyDirectory;
+    };
+
     tmux = {
       # I use scripts that use the passthrough sequence often on this host
       enablePassthrough = true;

hosts/homes/ambroisie@mousqueton/default.nix

@@ -25,6 +25,10 @@
       package = pkgs.emptyDirectory;
     };
 
+    jujutsu = {
+      package = pkgs.emptyDirectory;
+    };
+
     tmux = {
       # I use scripts that use the passthrough sequence often on this host
       enablePassthrough = true;

modules/home/default.nix

@@ -24,6 +24,7 @@
     ./gtk
     ./htop
     ./jq
+    ./jujutsu
     ./keyboard
     ./mail
     ./mpv

modules/home/delta/default.nix

@@ -11,6 +11,10 @@ in
     git = {
       enable = my.mkDisableOption "git integration";
     };
+
+    jujutsu = {
+      enable = my.mkDisableOption "jujutsu integration";
+    };
   };
 
   config = lib.mkIf cfg.enable {
@@ -45,5 +49,26 @@ in
         };
       };
     };
+
+    # `jj log -p` does not use `delta`
+    # https://github.com/jj-vcs/jj/issues/4142
+    programs.jujutsu = lib.mkIf cfg.jujutsu.enable {
+      settings = {
+        merge-tools = {
+          delta = {
+            # Errors are signaled with exit codes greater or equal to 2
+            diff-expected-exit-codes = [ 0 1 ];
+          };
+        };
+
+        ui = {
+          # Delta expects a `git diff` input
+          diff-formatter = ":git";
+
+          # `finalPackage` automatically applied `--config` if necessary
+          pager = [ (lib.getExe config.programs.delta.finalPackage) ];
+        };
+      };
+    };
   };
 }

modules/home/jujutsu/default.nix

@@ -0,0 +1,135 @@
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.my.home.jujutsu;
+
+  inherit (lib.my) mkMailAddress;
+in
+{
+  options.my.home.jujutsu = with lib; {
+    enable = my.mkDisableOption "jujutsu configuration";
+
+    package = mkPackageOption pkgs "jujutsu" { };
+  };
+
+  config = lib.mkIf cfg.enable {
+    assertions = [
+      {
+        # For `jj git` commands
+        assertion = cfg.enable -> config.my.home.git.enable;
+        message = ''
+          `config.my.home.jujutsu` relies on `config.my.home.git` being enabled.
+        '';
+      }
+    ];
+
+    programs.jujutsu = {
+      enable = true;
+
+      inherit (cfg) package;
+
+      settings = {
+        # Who am I?
+        user = {
+          name = "Bruno BELANYI";
+          email = mkMailAddress "bruno" "belanyi.fr";
+        };
+
+        aliases = {
+          jj = [ ];
+          # FIXME:
+          # * still not a big fan of the template
+          lol = [ "log" "-r" "..@" "-T" "builtin_log_oneline" ];
+          lola = [ "lol" "-r" "all()" ];
+          # FIXME: equivalent to `git switch -`
+          # See https://github.com/jj-vcs/jj/issues/2871
+          # Might be broken recently https://discord.com/channels/968932220549103686/1380272574709366989/1380432041983606855
+          # TODO:
+          # * `pick` (https://github.com/jj-vcs/jj/issues/5446): [ "util" "exec" "--" "bash" "-c" "jj log -p -r \"diff_contains($1)\"" "" ]
+          # * `root`: `jj workspace root` (barely necessary then)
+        };
+
+        ui = {
+          # Stop nagging me about it, though I am not a fan of its UI.
+          diff-editor = ":builtin";
+        };
+
+        # FIXME: git equivalents
+        # I'd like a better formatted blame (more like delta's?)
+        # blame = {
+        #   coloring = "repeatedLines";
+        #   markIgnoredLines = true;
+        #   markUnblamables = true;
+        # };
+        # FIXME: log colors should probably match git
+        # FIXME: patience diff?
+        # FIXME: fetch prune/pruneTags?
+        # FIXME: pull.rebase=true? Probably true TBH
+        # FIXME: push.default=simple? Probably true TBH
+        # FIXME: conflict style? ui.conflict-marker-style=git is diff3, not zdiff3. Default looks fine-ish
+
+        # FIXME: from ma_9's config, plus my own stuff
+        # snapshot = {
+        #   auto-track = "none()";
+        # };
+        #
+        # ui = {
+        #   movement = {
+        #     edit = false;
+        #   };
+        # };
+
+        templates = {
+          # Equivalent to `commit.verbose = true` in Git
+          draft_commit_description = "commit_description_verbose(self)";
+        };
+
+        template-aliases = {
+          "commit_description_verbose(commit)" = ''
+            concat(
+              commit_description(commit),
+              "JJ: ignore-rest\n",
+              diff.git(),
+            )
+          '';
+          # FIXME: use `diff.summary()` instead? Supported by syntax highlighting
+          # See https://github.com/jj-vcs/jj/issues/1946#issuecomment-2572986485
+          # FIXME: tree-sitter grammar isn't in `nvim-treesitter` (https://github.com/kareigu/tree-sitter-jjdescription)
+          "commit_description(commit)" = ''
+            concat(
+              commit.description(), "\n",
+              "JJ: This commit contains the following changes:\n",
+              indent("JJ:    ", diff.stat(72)),
+            )
+          '';
+        };
+
+        "--scope" = [
+          # Multiple identities
+          {
+            "--when" = {
+              repositories = [ "~/git/EPITA/" ];
+            };
+            user = {
+              name = "Bruno BELANYI";
+              email = mkMailAddress "bruno.belanyi" "epita.fr";
+            };
+          }
+          {
+            "--when" = {
+              repositories = [ "~/git/work/" ];
+            };
+            user = {
+              name = "Bruno BELANYI";
+              email = mkMailAddress "ambroisie" "google.com";
+            };
+          }
+        ];
+      };
+    };
+
+    # To drop in a `local.toml` configuration, not-versioned
+    xdg.configFile = {
+      "jj/conf.d/.keep".text = "";
+    };
+  };
+}

modules/home/vim/init.vim

@@ -81,9 +81,6 @@ set updatetime=250
 " Disable all mouse integrations
 set mouse=
 
-" Set dark mode by default
-set background=dark
-
 " Setup some overrides for gruvbox
 lua << EOF
 local gruvbox = require("gruvbox")

modules/home/zsh/default.nix

@@ -8,6 +8,10 @@ in
 
     launchTmux = mkEnableOption "auto launch tmux at shell start";
 
+    completionSync = {
+      enable = mkEnableOption "zsh-completion-sync plugin";
+    };
+
     notify = {
       enable = mkEnableOption "zsh-done notification";
 
@@ -118,6 +122,18 @@ in
       };
     }
 
+    (lib.mkIf cfg.completionSync.enable {
+      programs.zsh = {
+        plugins = [
+          {
+            name = "zsh-completion-sync";
+            file = "share/zsh-completion-sync/zsh-completion-sync.plugin.zsh";
+            src = pkgs.zsh-completion-sync;
+          }
+        ];
+      };
+    })
+
     (lib.mkIf cfg.notify.enable {
       programs.zsh = {
         plugins = [