refactoring to more granular flakes and modules

flakes/common/nix_modules/git/default.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+with lib;
+{
+  environment.systemPackages = with pkgs; [
+    git
+  ];
+
+  environment.shellAliases = {
+    # git
+    status = "git status";
+    diff = "git diff";
+    branches = "git branch -a";
+    gcam = "git commit -a -m";
+    gcm = "git commit -m";
+    stashes = "git stash list";
+    bd = "branch default";
+    li = "link_ignored";
+    bx = "branchdel";
+    b = "branch";
+  };
+
+  environment.shellInit = lib.concatStringsSep "\n\n" [
+    (builtins.readFile ./utils.func.sh)
+    (builtins.readFile ./branch.func.sh)
+    (builtins.readFile ./branchd.func.sh)
+    (builtins.readFile ./link_ignored.func.sh)
+  ];
+}