Caesium refactors flake

OLD_CONFIG.md

@@ -0,0 +1,21 @@
+      # Framework - argon
+      # nixosConfigurations.argon = nixpkgs.lib.nixosSystem {
+      #   specialArgs = { system = linuxSystem; inherit inputs; };
+        
+      #   modules = [
+      #     nixos-hardware.nixosModules.framework-12th-gen-intel
+      #     ./_hosts/argon/configuration.nix
+      #     ./nixos-modules
+      #   ];
+      # };
+
+      # nixosConfigurations.bromine = nixpkgs.lib.nixosSystem {
+      #   specialArgs = { system = linuxSystem; inherit inputs; };
+        
+      #   modules = [
+      #     nixos-hardware.nixosModules.framework-11th-gen-intel
+      #     ./_hosts/bromine/configuration.nix
+      #     ./nixos-modules
+      #   ];
+      # };
+      

caesium.home.nix

@@ -7,12 +7,25 @@
   home.packages = with pkgs; [];
 
   programs.home-manager.enable = true;
-  # Enable direnv for automatic environment switching
+
-  programs.direnv = {
+  home.packages = with pkgs; [
-    enable = true;
+    claude-desktop
-    nix-direnv.enable = true; # Better Nix flakes integration with caching
+    firefox
+    wowup-cf
+    faugus-launcher
+    ghostty
+
+  ];
+
+  services.flatpak = {
+    packages = [
+      com.spotify.Client
+      com.discordapp.Discord
+    ];
+    overrides = [];
   };
 
+
   # Managed VS Code Extensions (The "Clean" Way)
   programs.vscode = {
     enable = true;
@@ -21,18 +34,6 @@
       userSettings = builtins.fromJSON (builtins.readFile ./config.vscode.settings.json);
       extensions = with inputs.nix-vscode-extensions.extensions.${pkgs.system}.vscode-marketplace; [
         bbenoist.nix
-        eamodio.gitlens
-        github.copilot-chat
-        graphql.vscode-graphql-syntax
-        hashicorp.terraform
-        mechatroner.rainbow-csv
-        mermaidchart.vscode-mermaid-chart
-        redhat.vscode-xml
-        vscode-icons-team.vscode-icons
-        typescriptteam.native-preview
-        mkhl.direnv
-        oxc.oxc-vscode
-        biomejs.biome
       ];
     };
   };
@@ -43,40 +44,19 @@
     enableCompletion = true;
     autosuggestion.enable = true;
     syntaxHighlighting.enable = true;
-    oh-my-zsh.enable = true;
-    oh-my-zsh.theme = "robbyrussell";
-    oh-my-zsh.plugins = [
-      "git"
-      "npm"
-    ];
 
     initContent = ''
       export SSH_AUTH_SOCK=~/.1password/agent.sock
-
-      # Auto-allow direnv for directories with flake.nix
-      auto_allow_direnv() {
-        if [[ -f flake.nix ]] && [[ ! -f .envrc ]]; then
-          echo "use flake" > .envrc
-          direnv allow
-        elif [[ -f flake.nix ]] && [[ -f .envrc ]]; then
-          direnv allow
-        fi
-      }
-
-      # Run auto-allow when changing directories
-      chpwd_functions+=(auto_allow_direnv)
     '';
 
     shellAliases = {
       ll = "ls -l";
       update = "sudo nixos-rebuild switch --flake ~/nixos#caesium";
-      dev = "nix develop -c $SHELL";
       nixos = "code ~/nixos";
     };
   };
 
   home.sessionVariables = {
-    # Points to the Homebrew location mentioned in your caveat
     NPM_CONFIG_PREFIX = "/mnt/Projects/.npm-global/.npm-global";
   };
 
@@ -92,8 +72,6 @@
   
   # ~/.config (dotfiles)
   xdg.enable = true;
-  xdg.configFile."biome.json".source = ./config.biome.json;
-  xdg.configFile."oxlintrc.json".source = ./config.oxlintrc.json;
   xdg.configFile."ssh.conf".source = ./config.ssh.conf;
 
   programs.ssh = {

caesium.nixos.nix

@@ -141,6 +141,7 @@
 
   # --- PROGRAMS ---
   programs.zsh.enable = true;
+
   programs.steam = {
     enable = true;
     remotePlay.openFirewall = true;
@@ -159,38 +160,16 @@
     polkitPolicyOwners = [ "mbessette" ];
   };
 
-  # Biome config
-  environment.etc."biome.json".source = ./config.biome.json;
-  # environment.etc."oxlintrc.json".source = ./config.oxlintrc.json;
-  # environment.etc."ssh_config".source = ./config.ssh.conf;
-
   environment.systemPackages = with pkgs; [
     ethtool
     vim 
     git
     wget
     curl
-    firefox
+    python3
-    discord
+    nodejs_26
-    wowup-cf
-    spotify
-    faugus-launcher
-    signal-desktop
-    ## Emulators
-    xenia-canary
-    mupen64plus
   ];
 
-  services.flatpak.packages = [
-    # "io.github.Faugus.faugus-launcher"
-  ];
-
-  services.flatpak.overrides = {
-    # "io.github.Faugus.faugus-launcher".Context.filesystems = [
-    #   "/mtn/bottles"
-    # ];
-  };
-
   programs.appimage = {
     enable = true;
     binfmt = true;

flake.lock

@@ -21,27 +21,6 @@
         "type": "github"
       }
     },
-    "darwin": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1784500460,
-        "narHash": "sha256-UvORnAxTRHax7RG74W8Z2t4GvIkX6AjJ5kk0QlwZomo=",
-        "owner": "lnl7",
-        "repo": "nix-darwin",
-        "rev": "57a3171f94705599a2499248ca5758d5eb47c0e0",
-        "type": "github"
-      },
-      "original": {
-        "owner": "lnl7",
-        "ref": "master",
-        "repo": "nix-darwin",
-        "type": "github"
-      }
-    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -59,22 +38,6 @@
         "type": "github"
       }
     },
-    "flake-compat_2": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1767039857,
-        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -120,15 +83,37 @@
         ]
       },
       "locked": {
-        "lastModified": 1784546264,
+        "lastModified": 1785119570,
-        "narHash": "sha256-jxVr5EHMYAOkFvS2k0abIvt6NqyshyWmiHHzV17sT2g=",
+        "narHash": "sha256-Rgs2xKnGLFWQscxUaXX07oyZeuMDOHEbqDOsgliLFGM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "e3dea8e4792b09a6c0eb5836b0284ad05b1acba0",
+        "rev": "d4fd24667c8cbef124bb70a20380cab75ec8474d",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
+        "ref": "release-26.05",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "home-manager-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgsUnstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1785168662,
+        "narHash": "sha256-kGJTc0oEUQuEwV66lSlMxYtOEtpk9N/HS43k+rFAvs8=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "cbb77679b3d992c8b62f884cd3a84af534a28621",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "master",
         "repo": "home-manager",
         "type": "github"
       }
@@ -138,7 +123,9 @@
         "cl-nix-lite": "cl-nix-lite",
         "flake-compat": "flake-compat",
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": [
+          "nixpkgsUnstable"
+        ],
         "systems": "systems_2",
         "treefmt-nix": "treefmt-nix_2"
       },
@@ -156,18 +143,39 @@
         "type": "github"
       }
     },
+    "nix-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgsUnstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1784500460,
+        "narHash": "sha256-UvORnAxTRHax7RG74W8Z2t4GvIkX6AjJ5kk0QlwZomo=",
+        "owner": "nix-darwin",
+        "repo": "nix-darwin",
+        "rev": "57a3171f94705599a2499248ca5758d5eb47c0e0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-darwin",
+        "ref": "master",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "nix-flatpak": {
       "locked": {
-        "lastModified": 1767983141,
+        "lastModified": 1783368811,
-        "narHash": "sha256-7ZCulYUD9RmJIDULTRkGLSW1faMpDlPKcbWJLYHoXcs=",
+        "narHash": "sha256-0H8jDwR4Kegb3heaTrH1ftbgKfZVDT8JE+46uXxDy/Q=",
         "owner": "gmodena",
         "repo": "nix-flatpak",
-        "rev": "440818969ac2cbd77bfe025e884d0aa528991374",
+        "rev": "20d42f0ee98c9fe9f85e8d1de474f1409ed10d05",
         "type": "github"
       },
       "original": {
         "owner": "gmodena",
-        "ref": "latest",
+        "ref": "main",
         "repo": "nix-flatpak",
         "type": "github"
       }
@@ -175,7 +183,7 @@
     "nix-vscode-extensions": {
       "inputs": {
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgsUnstable"
         ]
       },
       "locked": {
@@ -194,7 +202,9 @@
     },
     "nixos-hardware": {
       "inputs": {
-        "nixpkgs": "nixpkgs_5"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1784310968,
@@ -211,26 +221,6 @@
         "type": "github"
       }
     },
-    "nixos-wsl": {
-      "inputs": {
-        "flake-compat": "flake-compat_2",
-        "nixpkgs": "nixpkgs_6"
-      },
-      "locked": {
-        "lastModified": 1784058842,
-        "narHash": "sha256-3u3tvbCIAid3Mv7RrJx13jusIEQC/HeKYhO/SUSxR3A=",
-        "owner": "nix-community",
-        "repo": "NixOS-WSL",
-        "rev": "24c8dc8e0f2170e1a377be24dfadc7d9d21dc1ad",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "ref": "main",
-        "repo": "NixOS-WSL",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1779796641,
@@ -278,6 +268,22 @@
         "type": "github"
       }
     },
+    "nixpkgsUnstable": {
+      "locked": {
+        "lastModified": 1785090369,
+        "narHash": "sha256-m0pDuRJG7EDo9ri+4Ksu83VsI+PlxNC9lNBfydejce4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "624af665418d3c65d544145b4d34ad696439570e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1761236834,
@@ -295,22 +301,6 @@
       }
     },
     "nixpkgs_3": {
-      "locked": {
-        "lastModified": 1782999065,
-        "narHash": "sha256-5Dgj5+pIQYZKrXUGaLCk7CKfN3MmpwIhO94++WVxvng=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "80d591ed473cfc46329932c2aadac9b435342c7c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-26.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_4": {
       "locked": {
         "lastModified": 1770107345,
         "narHash": "sha256-tbS0Ebx2PiA1FRW8mt8oejR0qMXmziJmPaU1d4kYY9g=",
@@ -326,62 +316,34 @@
         "type": "github"
       }
     },
-    "nixpkgs_5": {
+    "nixpkgs_4": {
       "locked": {
-        "lastModified": 1767892417,
+        "lastModified": 1785104993,
-        "narHash": "sha256-8bW3q88CEg2u4hSP66Vf4lpbLonHz7hqDNBMcCY7E9U=",
+        "narHash": "sha256-eKbrvPoAOFutbYMdbB3r5EQVmFxKv24iKqHPPUXA0gM=",
-        "rev": "3497aa5c9457a9d88d71fa93a4a8368816fbeeba",
-        "type": "tarball",
-        "url": "https://releases.nixos.org/nixos/unstable/nixos-26.05pre924538.3497aa5c9457/nixexprs.tar.xz"
-      },
-      "original": {
-        "type": "tarball",
-        "url": "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz"
-      }
-    },
-    "nixpkgs_6": {
-      "locked": {
-        "lastModified": 1783776592,
-        "narHash": "sha256-UgCQzxeWI75XM8G+hPrPh+MKzEPjG3SpAj7dtqSbksA=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_7": {
-      "locked": {
-        "lastModified": 1784497964,
-        "narHash": "sha256-vlHUuqAcbcH2RKmHbPiuQzbv1pnzzavXnI62RD0bqCU=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "241313f4e8e508cb9b13278c2b0fa25b9ca27163",
+        "rev": "8623c4c20aa4ca2f5fb81510d2944066c3fb0d96",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-unstable",
+        "ref": "nixos-26.05",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "darwin": "darwin",
         "home-manager": "home-manager",
+        "home-manager-darwin": "home-manager-darwin",
         "mac-app-util": "mac-app-util",
+        "nix-darwin": "nix-darwin",
         "nix-flatpak": "nix-flatpak",
         "nix-vscode-extensions": "nix-vscode-extensions",
         "nixos-hardware": "nixos-hardware",
-        "nixos-wsl": "nixos-wsl",
+        "nixpkgs": "nixpkgs_4",
-        "nixpkgs": "nixpkgs_7",
+        "nixpkgs-nodejs": "nixpkgs-nodejs",
-        "nixpkgs-nodejs": "nixpkgs-nodejs"
+        "nixpkgsUnstable": "nixpkgsUnstable"
       }
     },
     "systems": {
@@ -434,7 +396,7 @@
     },
     "treefmt-nix_2": {
       "inputs": {
-        "nixpkgs": "nixpkgs_4"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1780220602,

flake.nix

@@ -2,123 +2,163 @@
   description = "A very basic flake";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
-    nixos-wsl.url = "github:nix-community/NixOS-WSL/main";
-    mac-app-util.url = "github:hraban/mac-app-util";
 
-    darwin.url = "github:lnl7/nix-darwin/master";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-26.05";
-    darwin.inputs.nixpkgs.follows = "nixpkgs";
+    nixpkgsUnstable.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    nixos-hardware = {
+      url = "github:NixOS/nixos-hardware/master";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
 
     home-manager = {
-      url = "github:nix-community/home-manager";
+      url = "github:nix-community/home-manager/release-26.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
+    home-manager-darwin = {
+      url = "github:nix-community/home-manager/master";
+      inputs.nixpkgs.follows = "nixpkgsUnstable";
+    };
+
+    mac-app-util = {
+      url = "github:hraban/mac-app-util";
+      inputs.nixpkgs.follows = "nixpkgsUnstable";
+    };
+
+    nix-darwin = {
+      url = "github:nix-darwin/nix-darwin/master";
+      inputs.nixpkgs.follows = "nixpkgsUnstable";
+    };
+
     nix-vscode-extensions = {
       url = "github:nix-community/nix-vscode-extensions";
-      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.nixpkgs.follows = "nixpkgsUnstable";
     };
 
-    nix-flatpak.url = "github:gmodena/nix-flatpak/?ref=latest";
+    nix-flatpak = {
+      url = "github:gmodena/nix-flatpak/main";
+      inputs.nixpkgs.follows = "nixpkgsUnstable";
+    };
 
     # Pinned nixpkgs for a specific nodejs_22 + yarn version required by cleo-app
     nixpkgs-nodejs.url = "github:NixOS/nixpkgs/21808d22b1cda1898b71cf1a1beb524a97add2c4";
   };
 
-  outputs = { self, darwin, nixpkgs, nixos-hardware, nixos-wsl, home-manager, mac-app-util, nix-flatpak, ... }@inputs: 
+  outputs = inputs @ { 
+    self,
+    nixpkgs,
+    nixpkgsUnstable,
+    nixos-hardware,
+    home-manager,
+    home-manager-darwin,
+    nix-darwin,
+    mac-app-util,
+    nix-flatpak,
+    nixpkgs-nodejs,
+    ...
+    }: 
     let
       linuxSystem = "x86_64-linux";
       darwinSystem = "aarch64-darwin";
-      pkgs = import nixpkgs {
+      mkOverlays = sys: [
-        system = linuxSystem;
+        (final: prev: {
-        config = {
+          unstable = import nixpkgsUnstable {
-          allowUnfree = true;
+            system = sys;
+            config.allowUnfree = true;
           };
+          pinnedNode = import inputs.nixpkgs-nodejs {
+            system = sys;
+            config.allowUnfree = true;
           };
+        })
+      ];
     in {
-      # Framework - argon
+      # -------------------------------------------------------------
-      nixosConfigurations.argon = nixpkgs.lib.nixosSystem {
+      # NixOS Configuration (Linux)
-        specialArgs = { system = linuxSystem; inherit inputs; };
+      # -------------------------------------------------------------
-        
-        modules = [
-          nixos-hardware.nixosModules.framework-12th-gen-intel
-          ./_hosts/argon/configuration.nix
-          ./nixos-modules
-        ];
-      };
-
-      nixosConfigurations.bromine = nixpkgs.lib.nixosSystem {
-        specialArgs = { system = linuxSystem; inherit inputs; };
-        
-        modules = [
-          nixos-hardware.nixosModules.framework-11th-gen-intel
-          ./_hosts/bromine/configuration.nix
-          ./nixos-modules
-        ];
-      };
-
       nixosConfigurations.caesium = nixpkgs.lib.nixosSystem {
         specialArgs = { system = linuxSystem; inherit inputs; };
-        
         modules = [
-          nix-flatpak.nixosModules.nix-flatpak
-          ./caesium.nixos.nix
           {
+            nixpkgs.overlays = mkOverlays linuxSystem;
             nixpkgs.config.allowUnfree = true;
           }
-          # The Home Manager NixOS module
+          nix-flatpak.nixosModules.nix-flatpak
-          home-manager.nixosModules.home-manager
+          ./caesium.nixos.nix
-          {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.extraSpecialArgs = { inherit inputs; };
-            home-manager.users."mbessette" = import ./caesium.home.nix;
-            home-manager.backupFileExtension = "before-nix";
-          }
         ];
       };
 
-      nixosConfigurations.caesium-wsl = nixpkgs.lib.nixosSystem {
+      # -------------------------------------------------------------
-        specialArgs = { system = linuxSystem; inherit inputs; };
+      # nix-darwin Configuration (macOS)
-        
+      # -------------------------------------------------------------
-        modules = [
+      darwinConfigurations.cleo-darwin = nix-darwin.lib.darwinSystem {
-          nixos-wsl.nixosModules.default
-          ./_hosts/caesium-wsl/configuration.nix
-        ];
-      };
-
-      darwinConfigurations.cleo-darwin = darwin.lib.darwinSystem {
         specialArgs = { system = darwinSystem; inherit inputs; };
         system = darwinSystem;
         modules = [
+          {
+            nixpkgs.overlays = mkOverlays darwinSystem;
+            nixpkgs.config.allowUnfree = true;
+          }
           ./cleo.darwin.nix
           mac-app-util.darwinModules.default
-          home-manager.darwinModules.home-manager
-          {
-            home-manager.useGlobalPkgs = true;
-            home-manager.useUserPackages = true;
-            home-manager.extraSpecialArgs = { inherit inputs; };
-            home-manager.users."matthew.bessette" = import ./cleo.home.nix;
-            home-manager.backupFileExtension = ".before-nix";
-          }
         ];
       };
 
-      darwinConfigurations.hydrogen = darwin.lib.darwinSystem {
+      darwinConfigurations.hydrogen = nix-darwin.lib.darwinSystem {
         specialArgs = { system = darwinSystem; inherit inputs; };
         system = darwinSystem;
         modules = [
+          {
+            nixpkgs.overlays = mkOverlays darwinSystem;
+            nixpkgs.config.allowUnfree = true;
+          }
           ./hydrogen.darwin.nix
           mac-app-util.darwinModules.default
-          home-manager.darwinModules.home-manager
+        ];
-          {
+      };
-            home-manager.useGlobalPkgs = true;
+
-            home-manager.useUserPackages = true;
+      # -------------------------------------------------------------
-            home-manager.extraSpecialArgs = { inherit inputs; };
+      # Homemanager configuration
-            home-manager.users."mbessette" = import ./hydrogen.home.nix;
+      # -------------------------------------------------------------
-            home-manager.backupFileExtension = ".before-nix";
+      homeConfigurations."mbessette@caesium" = home-manager.lib.homeManagerConfiguration {
-          }
+        pkgs = import nixpkgs {
+          system = linuxSystem;
+          config.allowUnfree = true;
+          overlays = mkOverlays linuxSystem;
+        };
+        extraSpecialArgs = { inherit inputs; };
+        modules = [
+          ./home.shared.nix
+          ./caesium.home.nix
+        ];
+      };
+
+      homeConfigurations."mbessette@hydrogen" = home-manager-darwin.lib.homeManagerConfiguration {
+        pkgs = import nixpkgsUnstable {
+          system = darwinSystem;
+          config.allowUnfree = true;
+          overlays = mkOverlays darwinSystem;
+        };
+        extraSpecialArgs = { inherit inputs; };
+        modules = [
+          ./home.shared.nix
+          ./hydrogen.home.nix
+          mac-app-util.homeManagerModules.default
+        ];
+      };
+
+      homeConfigurations."matthew.bessette@cleo-darwin" = home-manager-darwin.lib.homeManagerConfiguration {
+        pkgs = import nixpkgsUnstable {
+          system = darwinSystem;
+          config.allowUnfree = true;
+          overlays = mkOverlays darwinSystem;
+        };
+        extraSpecialArgs = { inherit inputs; };
+        modules = [
+          ./home.shared.nix
+          ./cleo.home.nix
+          mac-app-util.homeManagerModules.default
         ];
       };
     };

home.shared.nix

@@ -0,0 +1,3 @@
+{
+  home.backupFileExtension = "before-nix";
+}