Update username

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,5 @@
 blank_issues_enabled: false
 contact_links:
   - name: Feature ideas and personal changes
-    url: https://github.com/kunchenguid/dotfiles/fork
+    url: https://github.com/digantamisra98/dotfiles/fork
     about: Feature requests are not accepted here, but you are welcome to fork this repo and make it yours.

README.md

@@ -34,7 +34,7 @@ Running the switch builds:
 On a brand new Mac, from a bare clone of this repo:
 
 ```sh
-git clone https://github.com/kunchenguid/dotfiles.git
+git clone https://github.com/digantamisra98/dotfiles.git
 cd dotfiles
 ```
 
@@ -46,13 +46,12 @@ Change the host label or CPU architecture if needed, and read the Homebrew clean
 ./bootstrap.sh
 ```
 
-`bootstrap.sh` does four things, in order:
+`bootstrap.sh` does three things, in order:
 
 1. Installs Determinate Nix, if it isn't already installed.
 2. Symlinks this repo to `~/.dotfiles`.
    This has to happen before the first build, because `home.nix` points at config files through `~/.dotfiles`.
-3. Checks the `user` configured in `flake.nix` against your actual macOS username, and offers to fix it for you if they differ.
-4. Runs the first `darwin-rebuild switch`.
+3. Runs the first `darwin-rebuild switch`.
    It fetches the `darwin-rebuild` tool from the nix-darwin 26.05 release branch, then applies this repo's locked flake config.
 
 After that, `darwin-rebuild` exists and you're on the normal workflow below.
@@ -62,10 +61,11 @@ After that, `darwin-rebuild` exists and you're on the normal workflow below.
 Once Nix is installed (`bootstrap.sh` step 1 handles that), you can check that the config builds without touching your system - handy when you have edited something:
 
 ```sh
-nix flake check --no-build
-nix build .#darwinConfigurations.mac.system --dry-run
+nix flake check --no-build --impure
+nix build .#darwinConfigurations.mac.system --dry-run --impure
 ```
 
+`--impure` is needed because `flake.nix` reads your username from the environment.
 If you renamed the host label in "Make it yours", substitute your label for `mac` in these commands.
 
 ## Daily use
@@ -84,7 +84,8 @@ No separate build-and-copy step.
 This repo is mine.
 If you clone it, review these before you run `bootstrap.sh`:
 
-- **Username**: run `./bootstrap.sh` (it detects your macOS username and offers to set it) OR change the single `user = "kunchen"` line in `flake.nix`.
+- **Username**: nothing to change.
+  `flake.nix` reads your macOS username from the environment at build time (`SUDO_USER` under sudo, `USER` otherwise), so the same branch works on any machine.
   Everything else (`configuration.nix`, `home.nix`, home directory paths) is threaded from that one variable.
 - **Host label** `"mac"`, in three places: `flake.nix` (the `darwinConfigurations."mac"` name), `rebuild.sh:5` (the `#mac` at the end of the flake reference), and `bootstrap.sh`'s first-switch command (also `#mac`).
   All three have to match.

bootstrap.sh

@@ -20,30 +20,7 @@ echo "==> Step 2: symlink this repo to ~/.dotfiles"
 # has to exist before the first switch or the build will fail to find them.
 ln -sfn "$DIR" ~/.dotfiles
 
-echo "==> Step 3: personalize the configured username"
-# Do this before any sudo call: sudo resets $USER to root, so whoami has to
-# run as the real interactive user first.
-REAL_USER="$(whoami)"
-FLAKE_USER="$(sed -nE 's/^[[:space:]]*user = "([^"]+)";.*/\1/p' "$DIR/flake.nix" | head -n1)"
-if [ -z "$FLAKE_USER" ]; then
-  echo "    Could not find the single \"user = \" line in flake.nix."
-  echo "    Edit flake.nix yourself before continuing."
-  exit 1
-elif [ "$FLAKE_USER" != "$REAL_USER" ]; then
-  echo "    flake.nix is configured for user \"$FLAKE_USER\", but you are \"$REAL_USER\"."
-  read -r -p "    Rewrite flake.nix's \"user = \" line to \"$REAL_USER\"? [y/N] " REPLY
-  if [ "$REPLY" = "y" ] || [ "$REPLY" = "Y" ]; then
-    sed -i '' -E "s/^([[:space:]]*user = \")[^\"]+(\";.*)/\1${REAL_USER}\2/" "$DIR/flake.nix"
-    echo "    Updated. Review the change with: git diff flake.nix"
-  else
-    echo "    Skipped. Edit the single \"user = \" line in flake.nix yourself before continuing."
-    exit 1
-  fi
-else
-  echo "    flake.nix already matches \"$REAL_USER\", nothing to do."
-fi
-
-echo "==> Step 4: first darwin-rebuild switch (pinned to nix-darwin-26.05)"
+echo "==> Step 3: first darwin-rebuild switch (pinned to nix-darwin-26.05)"
 # darwin-rebuild doesn't exist yet on a fresh machine, so run it straight
 # from the flake this once. After this, rebuild.sh works normally.
 # This fetches the darwin-rebuild tool from the nix-darwin-26.05 release branch,
@@ -55,8 +32,9 @@ echo "==> Step 4: first darwin-rebuild switch (pinned to nix-darwin-26.05)"
 NIX_BIN="$(command -v nix)"
 # "mac" is the flake host label - if you renamed it, change it in flake.nix
 # and rebuild.sh too.
+# --impure lets flake.nix read the username from the environment (SUDO_USER).
 sudo "$NIX_BIN" run github:nix-darwin/nix-darwin/nix-darwin-26.05#darwin-rebuild -- \
-  switch --flake ~/.dotfiles#mac
+  switch --flake ~/.dotfiles#mac --impure
 # If this still fails with "nix: command not found", open a new terminal
 # (Determinate adds nix to new shells' PATH) and re-run ./bootstrap.sh.
 

configuration.nix

@@ -28,18 +28,33 @@
   nix-homebrew = {
     enable = true;
     inherit user;
+    # Adopt a pre-existing Homebrew install instead of erroring out. Inert on a
+    # machine nix-homebrew already manages; needed for a clean first switch on a
+    # fresh Mac that already had Homebrew (e.g. reproducing this setup elsewhere).
+    autoMigrate = true;
   };
   homebrew = {
     enable = true;
     onActivation.cleanup = "zap";  # remove anything not listed here
     onActivation.autoUpdate = true;
     onActivation.extraFlags = [ "--force" ];
+    # Top-level formulae only (from `brew leaves`); dependencies are pulled
+    # in automatically, so they are intentionally not listed here.
     brews = [
+      "bash"
+      "fish"
+      "gemini-cli"
+      "gh"
+      "git"
       "herdr"
+      "python@3.14"
+      "uv"
     ];
     casks = [
       "wezterm"
       "claude-code"
+      "copilot-cli"
+      "opensuperwhisper"
     ];
   };
 }

flake.nix

@@ -12,13 +12,24 @@
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
 
     nix-homebrew.url = "github:zhaofengli/nix-homebrew";
+
+    # treehouse: git worktree pool manager (Go), installed from its own flake.
+    treehouse.url = "github:kunchenguid/treehouse";
+    treehouse.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = inputs@{ self, nix-darwin, nix-homebrew, home-manager, nixpkgs }:
+  outputs = inputs@{ self, nix-darwin, nix-homebrew, home-manager, nixpkgs, ... }:
     let
-      # The one username line to change if this isn't your machine.
-      # bootstrap.sh offers to rewrite this for you if your macOS username differs.
-      user = "kunchen";
+      # Read the username from the environment at evaluation time, so the same
+      # branch builds on any machine with no per-machine edits. SUDO_USER wins
+      # because darwin-rebuild runs under sudo, where USER is "root".
+      # getEnv needs impure evaluation - rebuild.sh and bootstrap.sh pass --impure.
+      sudoUser = builtins.getEnv "SUDO_USER";
+      envUser = builtins.getEnv "USER";
+      user =
+        if sudoUser != "" then sudoUser
+        else if envUser != "" && envUser != "root" then envUser
+        else throw "Cannot determine the username: run via ./rebuild.sh, or pass --impure so flake.nix can read $USER.";
     in
     {
       darwinConfigurations."mac" = nix-darwin.lib.darwinSystem {
@@ -30,7 +41,11 @@
           {
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;
-            home-manager.extraSpecialArgs = { inherit user; };
+            # Rename any pre-existing dotfile (e.g. a hand-written ~/.zshrc) to
+            # <name>.backup instead of refusing to overwrite it. Lets the first
+            # switch adopt a machine that already had these files.
+            home-manager.backupFileExtension = "backup";
+            home-manager.extraSpecialArgs = { inherit user inputs; };
             home-manager.users.${user} = import ./home.nix;
           }
         ];

home.nix

@@ -1,7 +1,31 @@
-{ config, pkgs, user, ... }:
+{ config, pkgs, user, inputs, ... }:
 
 let
   dotfiles = "${config.home.homeDirectory}/.dotfiles";
+
+  # no-mistakes: git-push validation proxy. No upstream flake, so install the
+  # signed prebuilt release binary directly. This keeps it in the Nix profile via
+  # rebuild — no curl installer, nothing in /usr/local, no sudo beyond darwin-rebuild.
+  # To bump: change version + hash (nix-prefetch-url the new darwin-arm64 tarball).
+  no-mistakes = pkgs.stdenvNoCC.mkDerivation rec {
+    pname = "no-mistakes";
+    version = "1.37.0";
+    src = pkgs.fetchurl {
+      url = "https://github.com/kunchenguid/no-mistakes/releases/download/v${version}/no-mistakes-v${version}-darwin-arm64.tar.gz";
+      hash = "sha256-jyrIccDKNdrpV78+IOt8r8/V/H3mIsRuXlGQgZJHSaE=";
+    };
+    sourceRoot = ".";           # tarball is a single flat binary, no wrapping dir
+    dontConfigure = true;
+    dontBuild = true;
+    dontFixup = true;           # skip ALL Mach-O post-processing (strip/re-sign); keeps the upstream
+                                # Developer ID + hardened-runtime signature valid — arm64 kills a
+                                # binary whose signature was invalidated. Nothing to fix in a static Go bin.
+    installPhase = ''
+      runHook preInstall
+      install -Dm755 no-mistakes $out/bin/no-mistakes
+      runHook postInstall
+    '';
+  };
 in
 
 {
@@ -16,6 +40,10 @@ in
     jq        # json on the command line
     lazygit
     neovim
+    # git worktree pool manager, from its own flake input
+    inputs.treehouse.packages.${pkgs.system}.default
+    # git-push validation proxy (prebuilt release binary, defined in the let block above)
+    no-mistakes
     # the font everything renders in
     nerd-fonts.hack
   ];
@@ -32,11 +60,15 @@ in
     shellAliases = {
       ".." = "cd ..";
       add = "git add .";
+      status = "git status";
       push = "git push";
       pull = "git pull";
+      gcm = "git commit -m";
+      gpp = "git push origin main";
       m = "git switch main";
       cc = "claude --dangerously-skip-permissions";
       co = "codex --full-auto";
+      delds = "find . -type f -name '.DS_Store' -delete";
     };
   };
 

home/.claude/settings.json

@@ -1,7 +1,22 @@
 {
-  "theme": "dark-ansi",
   "statusLine": {
     "type": "command",
     "command": "input=$(cat); model=$(echo \"$input\" | jq -r '.model.display_name'); used=$(echo \"$input\" | jq -r '.context_window.used_percentage // empty'); if [ -n \"$used\" ]; then printf \"%s | ctx: %.0f%% used\" \"$model\" \"$used\"; else printf \"%s\" \"$model\"; fi"
+  },
+  "theme": "dark-ansi",
+  "skipDangerousModePermissionPrompt": true,
+  "hooks": {
+    "SessionStart": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "gh-axi",
+            "timeout": 10
+          }
+        ]
+      }
+    ]
   }
 }

home/.config/herdr/config.toml

@@ -1,3 +1,4 @@
+onboarding = false
 [keys]
 prefix = "ctrl+b"
 focus_pane_left  = "prefix+h"

home/.config/wezterm/wezterm.lua

@@ -2,10 +2,10 @@ local wezterm = require("wezterm")
 
 local config = wezterm.config_builder()
 
-config.color_scheme = "rose-pine-moon"
+config.color_scheme = "Dark Violet (base16)"
 config.font = wezterm.font("Hack Nerd Font")
 config.font_size = 15.0
-config.window_background_opacity = 0.8
+config.window_background_opacity = 0.7
 config.macos_window_background_blur = 50
 config.hide_tab_bar_if_only_one_tab = true
 config.window_decorations = "RESIZE"

home/AGENTS.md

@@ -1,4 +1,8 @@
-# global agent instructions
+# Diganta's agent instructions
+
+These are common instructions for Diganta's agents across all scenarios. 
+
+#  General Guidelines
 
 - Never use the em dash "—". Use plain dash "-" instead
 - When writing commit messages, NEVER auto-add your agent name as co-author
@@ -11,5 +15,5 @@
   If something clearly looks off, even if it is not directly related to what you are doing, try to get it fixed along the way.
 - Apply that same high standard to engineering excellence: lint, test failures, and test flakiness.
   If you see one, even if it is not caused by what you are working on right now, still get it fixed.
-
-
+- When running jobs on compute clusters, always allocate resources that will maximize usage throughout the job. 
+- When doing literature review, provide a comprehensive report in a HTML or markdown file containing the high level idea of the paper, blogpost, webpage along with central claims, results and potential weaknesses or conflicts with our proposal.

rebuild.sh

@@ -2,4 +2,5 @@
 set -euo pipefail
 DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)"
 ln -sfn "$DIR" ~/.dotfiles
-exec sudo darwin-rebuild switch --flake ~/.dotfiles#mac
+# --impure lets flake.nix read the username from the environment (SUDO_USER).
+exec sudo darwin-rebuild switch --flake ~/.dotfiles#mac --impure