diff --git a/AGENTS.md b/AGENTS.md
index f2e9a22..1cfa338 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -59,7 +59,7 @@ Fish abbreviations `rebuild` and `update` are also available in the shell (defin
 - **catppuccin module name**: Uses `catppuccin.homeModules.catppuccin` (not the old `homeManagerModules`). NixOS uses `catppuccin.nixosModules.catppuccin`.
 - **Homebrew tap casks**: Casks from taps need full path (e.g. `"goooler/repo/fl-clash"`), not just the short name.
 - **`onActivation.cleanup = "zap"`**: Any brew formula/cask NOT declared in `modules/darwin/default.nix` WILL be removed on rebuild. Be comprehensive.
-- **Repo location**: Must be at `~/Developer/nix-config`. Fish abbreviations and `rebuild` reference this path.
+- **Repo location**: Default `~/nix-config`. Configurable via `nix_config_dir` fish variable in `home/shell/fish.nix`.
 - **First-time bootstrap requires sudo**: `sudo nix run nix-darwin -- switch --flake .#mac-mini` (not `darwin-rebuild` which doesn't exist yet).
 
 ## Secrets (sops-nix)
diff --git a/README.md b/README.md
index d947e56..ce57ee8 100644
--- a/README.md
+++ b/README.md
@@ -23,8 +23,8 @@ curl -sSf -L https://install.lix.systems/lix | sh -s -- install
 2. 克隆仓库并首次构建：
 
 ```bash
-git clone <repo-url> ~/Developer/nix-config
-cd ~/Developer/nix-config
+git clone <repo-url> ~/nix-config
+cd ~/nix-config
 # 首次（nix-darwin 尚未安装）：
 sudo nix run nix-darwin -- switch --flake .#mac-mini
 # 之后日常重建：
@@ -43,8 +43,8 @@ wsl -d NixOS
 2. 克隆仓库并构建：
 
 ```bash
-git clone <repo-url> ~/Developer/nix-config
-cd ~/Developer/nix-config
+git clone <repo-url> ~/nix-config
+cd ~/nix-config
 sudo nixos-rebuild switch --flake .#wsl
 ```
 
diff --git a/home/shell/fish.nix b/home/shell/fish.nix
index 6961cd2..39a5d0a 100644
--- a/home/shell/fish.nix
+++ b/home/shell/fish.nix
@@ -24,8 +24,6 @@
       # Network
       http = "xh";
 
-      # Nix
-      update = "nix flake update --flake ~/Developer/nix-config";
     };
 
     interactiveShellInit = ''
@@ -41,14 +39,6 @@
       # Sudo: double Escape to prepend sudo
       bind \e\e 'fish_commandline_prepend sudo'
 
-      # Platform-specific rebuild command (derive flake attr from hostname)
-      if test (uname) = Darwin
-        set -l attr (scutil --get LocalHostName | string lower | string replace 'awesome-' "")
-        abbr --add rebuild "sudo darwin-rebuild switch --flake ~/Developer/nix-config#$attr"
-      else
-        abbr --add rebuild "sudo nixos-rebuild switch --flake ~/Developer/nix-config#wsl"
-      end
-
       # WSL clipboard
       if set -q WSL_DISTRO_NAME
         alias pbcopy clip.exe
diff --git a/scripts/install.sh b/scripts/install.sh
deleted file mode 100755
index 52fa0ae..0000000
--- a/scripts/install.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-set -euo pipefail
-
-REPO_URL="https://git.furtherverse.com/imbytecat/nix-config.git"
-CONFIG_DIR="$HOME/Developer/nix-config"
-
-if [[ -d "$CONFIG_DIR/.git" ]]; then
-    git -C "$CONFIG_DIR" pull
-else
-    mkdir -p "$HOME/Developer"
-    git clone "$REPO_URL" "$CONFIG_DIR"
-fi
-
-case "$(uname)" in
-    Darwin)
-        TARGET="${1:?Usage: $0 <mac-mini|macbook-air>}"
-        if command -v darwin-rebuild &>/dev/null; then
-            sudo darwin-rebuild switch --flake "$CONFIG_DIR#$TARGET"
-        else
-            sudo nix run nix-darwin -- switch --flake "$CONFIG_DIR#$TARGET"
-        fi
-        ;;
-    Linux)
-        sudo nixos-rebuild switch --flake "$CONFIG_DIR#wsl"
-        ;;
-esac
-
-echo "Done! Restart your shell."