flake: partition dev dependencies

This removes the need for end-users to manually set
`nixvim.inputs.devshell.follows = ""` (etc)

We offload evaluation of some of our flake modules into a `dev`
partition submodule.
- When its not needed, this submodule is not evaluated.
- When it is needed, it fetches extra inputs from `flake/dev/flake.nix`
  as part of evaluating the submodule.

See https://flake.parts/options/flake-parts-partitions.html

.github/workflows/update.yml

@@ -6,10 +6,14 @@ on:
   # Allow manual triggering
   workflow_dispatch:
     inputs:
-      lock:
+      root_lock:
         type: boolean
         default: true
-        description: Update flake.lock
+        description: Update root flake.lock
+      dev_lock:
+        type: boolean
+        default: true
+        description: Update dev flake.lock
       generate:
         type: boolean
         default: true
@@ -100,9 +104,9 @@ jobs:
           git fetch origin "$pr_branch"
           git branch --set-upstream-to "origin/$pr_branch"
 
-      - name: Update flake.lock
+      - name: Update root flake.lock
-        id: flake_lock
+        id: root_flake_lock
-        if: inputs.lock || github.event_name == 'schedule'
+        if: inputs.root_lock || github.event_name == 'schedule'
         run: |
           old=$(git show --no-patch --format=%h)
           nix flake update --commit-lock-file
@@ -113,6 +117,22 @@ jobs:
             echo "EOF" >> "$GITHUB_OUTPUT"
           fi
 
+      - name: Update dev flake.lock
+        id: dev_flake_lock
+        if: inputs.dev_lock || github.event_name == 'schedule'
+        run: |
+          root_nixpkgs=$(nix eval -f . 'inputs.nixpkgs.rev')
+          old=$(git show --no-patch --format=%h)
+          nix flake update --commit-lock-file \
+              --override-input nixpkgs "github:NixOS/nixpkgs/$root_nixpkgs" \
+              --flake './flake/dev'
+          new=$(git show --no-patch --format=%h)
+          if [ "$old" != "$new" ]; then
+            echo "body<<EOF" >> "$GITHUB_OUTPUT"
+            git show --no-patch --format=%b >> "$GITHUB_OUTPUT"
+            echo "EOF" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Update generated files
         id: generate
         if: inputs.generate || github.event_name == 'schedule'
@@ -185,9 +205,14 @@ jobs:
           title: |
             [${{ github.ref_name }}] Update flake.lock & generated files
           body: |
-            ## Flake lockfile
+            ## Root lockfile
             ```
-            ${{ steps.flake_lock.outputs.body || 'No changes' }}
+            ${{ steps.root_flake_lock.outputs.body || 'No changes' }}
+            ```
+
+            ## Dev lockfile
+            ```
+            ${{ steps.dev_flake_lock.outputs.body || 'No changes' }}
             ```
 
             ## Generate

default.nix

@@ -1,6 +1,6 @@
 (import (
   let
-    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+    lock = builtins.fromJSON (builtins.readFile ./flake/dev/flake.lock);
   in
   fetchTarball {
     url =

flake.lock

@@ -1,39 +1,5 @@
 {
   "nodes": {
-    "devshell": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1735644329,
-        "narHash": "sha256-tO3HrHriyLvipc4xr+Ewtdlo7wM1OjXNjlWRgmM7peY=",
-        "owner": "numtide",
-        "repo": "devshell",
-        "rev": "f7795ede5b02664b57035b3b757876703e2c3eac",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "devshell",
-        "type": "github"
-      }
-    },
-    "flake-compat": {
-      "locked": {
-        "lastModified": 1733328505,
-        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
-        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
-        "revCount": 69,
-        "type": "tarball",
-        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.1.0/01948eb7-9cba-704f-bbf3-3fa956735b52/source.tar.gz"
-      },
-      "original": {
-        "type": "tarball",
-        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
-      }
-    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": [
@@ -72,71 +38,6 @@
         "type": "github"
       }
     },
-    "git-hooks": {
-      "inputs": {
-        "flake-compat": [
-          "flake-compat"
-        ],
-        "gitignore": "gitignore",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1737465171,
-        "narHash": "sha256-R10v2hoJRLq8jcL4syVFag7nIGE7m13qO48wRIukWNg=",
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "rev": "9364dc02281ce2d37a1f55b6e51f7c0f65a75f17",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "type": "github"
-      }
-    },
-    "gitignore": {
-      "inputs": {
-        "nixpkgs": [
-          "git-hooks",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1709087332,
-        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
-        "owner": "hercules-ci",
-        "repo": "gitignore.nix",
-        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "gitignore.nix",
-        "type": "github"
-      }
-    },
-    "home-manager": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1738878603,
-        "narHash": "sha256-fmhq8B3MvQLawLbMO+LWLcdC2ftLMmwSk+P29icJ3tE=",
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "rev": "433799271274c9f2ab520a49527ebfe2992dcfbd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "home-manager",
-        "type": "github"
-      }
-    },
     "ixx": {
       "inputs": {
         "flake-utils": [
@@ -163,26 +64,6 @@
         "type": "github"
       }
     },
-    "nix-darwin": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1738743987,
-        "narHash": "sha256-O3bnAfsObto6l2tQOmQlrO6Z2kD6yKwOWfs7pA0CpOc=",
-        "owner": "lnl7",
-        "repo": "nix-darwin",
-        "rev": "ae406c04577ff9a64087018c79b4fdc02468c87c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "lnl7",
-        "repo": "nix-darwin",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1738797219,
@@ -223,15 +104,9 @@
     },
     "root": {
       "inputs": {
-        "devshell": "devshell",
-        "flake-compat": "flake-compat",
         "flake-parts": "flake-parts",
-        "git-hooks": "git-hooks",
-        "home-manager": "home-manager",
-        "nix-darwin": "nix-darwin",
         "nixpkgs": "nixpkgs",
-        "nuschtosSearch": "nuschtosSearch",
+        "nuschtosSearch": "nuschtosSearch"
-        "treefmt-nix": "treefmt-nix"
       }
     },
     "systems": {
@@ -248,26 +123,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "treefmt-nix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1738680491,
-        "narHash": "sha256-8X7tR3kFGkE7WEF5EXVkt4apgaN85oHZdoTGutCFs6I=",
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "rev": "64dbb922d51a42c0ced6a7668ca008dded61c483",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "treefmt-nix",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -9,60 +9,10 @@
       inputs.nixpkgs-lib.follows = "nixpkgs";
     };
 
-    /*
-      # NOTE: The inputs below this comment are optional
-      # You can remove them with `inputs.<input>.follows = ""`
-
-      For example:
-
-      ```
-      nixvim = {
-        url = "github:nix-community/nixvim";
-        inputs = {
-          nixpkgs.follows = "nixpkgs";
-          flake-parts.follows = "flake-parts";
-
-          devshell.follows = "";
-          flake-compat.follows = "";
-          git-hooks.follows = "";
-          home-manager.follows = "";
-          nix-darwin.follows = "";
-          treefmt-nix.follows = "";
-        };
-      };
-      ```
-    */
-
     nuschtosSearch = {
       url = "github:NuschtOS/search";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-
-    home-manager = {
-      url = "github:nix-community/home-manager";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-    nix-darwin = {
-      url = "github:lnl7/nix-darwin";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
-    devshell = {
-      url = "github:numtide/devshell";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-    treefmt-nix = {
-      url = "github:numtide/treefmt-nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
-    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
-
-    git-hooks = {
-      url = "github:cachix/git-hooks.nix";
-      inputs.nixpkgs.follows = "nixpkgs";
-      inputs.flake-compat.follows = "flake-compat";
-    };
   };
 
   nixConfig = {

flake/default.nix

@@ -1,6 +1,12 @@
+{
+  lib,
+  inputs,
+  config,
+  partitionStack,
+  ...
+}:
 {
   imports = [
-    ./dev
     ./flake-modules
     ./lib.nix
     ./legacy-packages.nix
@@ -8,7 +14,43 @@
     ./overlays.nix
     ./packages.nix
     ./templates.nix
-    ./tests.nix
     ./wrappers.nix
+    inputs.flake-parts.flakeModules.partitions
   ];
+
+  # Define flake partitions
+  # Each has a `module`, assigned to the partition's submodule,
+  # and an `extraInputsFlake`, used for its inputs.
+  # See https://flake.parts/options/flake-parts-partitions.html
+  partitions = {
+    dev = {
+      module = ./dev;
+      extraInputsFlake = ./dev;
+    };
+  };
+
+  # Specify which outputs are defined by which partitions
+  partitionedAttrs = {
+    checks = "dev";
+    devShells = "dev";
+    formatter = "dev";
+  };
+
+  # For any output attrs normally defined by the root flake configuration,
+  # any exceptions must be manually propagated from the `dev` partition.
+  #
+  # NOTE: Attrs should be explicitly propagated at the deepest level.
+  # Otherwise the partition won't be lazy, making it pointless.
+  # E.g. propagate `packages.${system}.foo` instead of `packages.${system}`
+  # See: https://github.com/hercules-ci/flake-parts/issues/258
+  perSystem =
+    { system, ... }:
+    {
+      packages = lib.optionalAttrs (partitionStack == [ ]) {
+        # Propagate `packages` from the `dev` partition:
+        inherit (config.partitions.dev.module.flake.packages.${system})
+          list-plugins
+          ;
+      };
+    };
 }

flake/dev/default.nix

@@ -1,21 +1,22 @@
-{ lib, inputs, ... }:
+{ inputs, ... }:
 {
-  imports =
+  imports = [
-    [
     ./devshell.nix
     ./list-plugins
-    ]
+    ./package-tests.nix
-    ++ lib.optional (inputs.git-hooks ? flakeModule) inputs.git-hooks.flakeModule
+    ./template-tests.nix
-    ++ lib.optional (inputs.treefmt-nix ? flakeModule) inputs.treefmt-nix.flakeModule;
+    ./tests.nix
+    inputs.git-hooks.flakeModule
+    inputs.treefmt-nix.flakeModule
+  ];
 
   perSystem =
     {
-      lib,
       pkgs,
       system,
       ...
     }:
-    lib.optionalAttrs (inputs.treefmt-nix ? flakeModule) {
+    {
       treefmt.config = {
         projectRootFile = "flake.nix";
         flakeCheck = true;
@@ -66,8 +67,7 @@
           formatter.ruff-format.options = [ "--isolated" ];
         };
       };
-    }
+
-    // lib.optionalAttrs (inputs.git-hooks ? flakeModule) {
       pre-commit = {
         # We have a treefmt check already, so this is redundant.
         # We also can't run the test if it includes running `nix build`,

flake/dev/devshell.nix

@@ -1,17 +1,18 @@
 { lib, inputs, ... }:
 {
-  imports = lib.optional (inputs.devshell ? flakeModule) inputs.devshell.flakeModule;
+  imports = [
+    inputs.devshell.flakeModule
+  ];
 
   perSystem =
     {
-      lib,
       pkgs,
       config,
       self',
       system,
       ...
     }:
-    lib.optionalAttrs (inputs.devshell ? flakeModule) {
+    {
       devshells.default = {
         devshell.startup.pre-commit.text = config.pre-commit.installationScript;
 

flake/dev/flake.lock

@@ -0,0 +1,172 @@
+{
+  "nodes": {
+    "devshell": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1735644329,
+        "narHash": "sha256-tO3HrHriyLvipc4xr+Ewtdlo7wM1OjXNjlWRgmM7peY=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "f7795ede5b02664b57035b3b757876703e2c3eac",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "locked": {
+        "lastModified": 1733328505,
+        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
+        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
+        "revCount": 69,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/edolstra/flake-compat/1.1.0/01948eb7-9cba-704f-bbf3-3fa956735b52/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "flake-compat"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1737465171,
+        "narHash": "sha256-R10v2hoJRLq8jcL4syVFag7nIGE7m13qO48wRIukWNg=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "9364dc02281ce2d37a1f55b6e51f7c0f65a75f17",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1738878603,
+        "narHash": "sha256-fmhq8B3MvQLawLbMO+LWLcdC2ftLMmwSk+P29icJ3tE=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "433799271274c9f2ab520a49527ebfe2992dcfbd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nix-darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1738743987,
+        "narHash": "sha256-O3bnAfsObto6l2tQOmQlrO6Z2kD6yKwOWfs7pA0CpOc=",
+        "owner": "lnl7",
+        "repo": "nix-darwin",
+        "rev": "ae406c04577ff9a64087018c79b4fdc02468c87c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "lnl7",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1738797219,
+        "narHash": "sha256-KRwX9Z1XavpgeSDVM/THdFd6uH8rNm/6R+7kIbGa+2s=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1da52dd49a127ad74486b135898da2cef8c62665",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-compat": "flake-compat",
+        "git-hooks": "git-hooks",
+        "home-manager": "home-manager",
+        "nix-darwin": "nix-darwin",
+        "nixpkgs": "nixpkgs",
+        "treefmt-nix": "treefmt-nix"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1738680491,
+        "narHash": "sha256-8X7tR3kFGkE7WEF5EXVkt4apgaN85oHZdoTGutCFs6I=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "64dbb922d51a42c0ced6a7668ca008dded61c483",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake/dev/flake.nix

@@ -0,0 +1,38 @@
+{
+  description = "Private inputs for development purposes. These are used by the top level flake in the `dev` partition, but do not appear in consumers' lock files.";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    home-manager = {
+      url = "github:nix-community/home-manager";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    nix-darwin = {
+      url = "github:lnl7/nix-darwin";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    devshell = {
+      url = "github:numtide/devshell";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    treefmt-nix = {
+      url = "github:numtide/treefmt-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
+
+    git-hooks = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.flake-compat.follows = "flake-compat";
+    };
+  };
+
+  # This flake is only used for its inputs.
+  outputs = inputs: { };
+}

flake/dev/list-plugins/default.nix

@@ -1,12 +1,8 @@
-{ inputs, self, ... }:
+{ self, ... }:
 {
   perSystem =
     {
-      self',
-      config,
       lib,
-      inputs',
-      system,
       pkgs,
       ...
     }:
@@ -33,8 +29,6 @@
             list-plugins --root-path ${self} > $out
           '';
 
-    }
-    // lib.optionalAttrs (inputs.devshell ? flakeModule) {
       devshells.default.commands = [
         {
           name = "list-plugins";

flake/dev/package-tests.nix

@@ -0,0 +1,8 @@
+{
+  perSystem =
+    { config, ... }:
+    {
+      # Test that all packages build fine when running `nix flake check`.
+      checks = config.packages;
+    };
+}

flake/dev/template-tests.nix

@@ -0,0 +1,51 @@
+{ self, inputs, ... }:
+{
+  # The following adds the template flake's checks to the main (current) flake's checks.
+  # It ensures that the template's own checks are successful.
+  perSystem =
+    {
+      pkgs,
+      system,
+      lib,
+      ...
+    }:
+    {
+      checks =
+        let
+          # Approximates https://github.com/NixOS/nix/blob/96e550ef/src/libexpr/call-flake.nix#L67-L85
+          callFlake =
+            flake@{
+              inputs,
+              outputs,
+              sourceInfo ? { },
+            }:
+            let
+              outputs = flake.outputs (inputs // { self = result; });
+              result =
+                outputs
+                // sourceInfo
+                // {
+                  inherit inputs outputs sourceInfo;
+                  _type = "flake";
+                };
+            in
+            result;
+
+          flakes = lib.mapAttrs (
+            name: template:
+            callFlake {
+              # Use inputs from our flake
+              inputs = {
+                inherit (inputs) flake-parts nixpkgs;
+                nixvim = self;
+              };
+              # Use outputs from the template flake
+              inherit (import "${template.path}/flake.nix") outputs;
+            }
+          ) self.templates;
+        in
+        lib.concatMapAttrs (name: flake: {
+          "template-${name}" = pkgs.linkFarm name flake.checks.${system};
+        }) flakes;
+    };
+}

flake/dev/tests.nix

@@ -7,7 +7,7 @@
   perSystem =
     { pkgs, ... }:
     {
-      checks = pkgs.callPackages ../tests {
+      checks = pkgs.callPackages ../../tests {
         inherit helpers self;
       };
     };

flake/packages.nix

@@ -6,7 +6,6 @@
 {
   perSystem =
     {
-      config,
       inputs',
       system,
       ...
@@ -18,8 +17,5 @@
         inherit (inputs) nixpkgs;
         inherit (inputs') nuschtosSearch;
       };
-
-      # Test that all packages build fine when running `nix flake check`.
-      checks = config.packages;
     };
 }

flake/templates.nix

@@ -1,4 +1,3 @@
-{ self, inputs, ... }:
 {
   flake.templates = {
     default = {
@@ -10,54 +9,4 @@
       description = "An experimental flake template for configuring nixvim using evalNixvim and flake.parts";
     };
   };
-
-  # The following adds the template flake's checks to the main (current) flake's checks.
-  # It ensures that the template's own checks are successful.
-  perSystem =
-    {
-      pkgs,
-      system,
-      lib,
-      ...
-    }:
-    {
-      checks =
-        let
-          # Approximates https://github.com/NixOS/nix/blob/7cd08ae379746749506f2e33c3baeb49b58299b8/src/libexpr/flake/call-flake.nix#L46
-          # s/flake.outputs/args.outputs/
-          callFlake =
-            args@{
-              inputs,
-              outputs,
-              sourceInfo ? { },
-            }:
-            let
-              outputs = args.outputs (inputs // { self = result; });
-              result =
-                outputs
-                // sourceInfo
-                // {
-                  inherit inputs outputs sourceInfo;
-                  _type = "flake";
-                };
-            in
-            result;
-
-          flakes = lib.mapAttrs (
-            name: template:
-            callFlake {
-              # Use inputs from our flake
-              inputs = {
-                inherit (inputs) flake-parts nixpkgs;
-                nixvim = self;
-              };
-              # Use outputs from the template flake
-              inherit (import "${template.path}/flake.nix") outputs;
-            }
-          ) self.templates;
-        in
-        lib.concatMapAttrs (name: flake: {
-          "template-${name}" = pkgs.linkFarm name flake.checks.${system};
-        }) flakes;
-    };
 }

tests/no-flake.nix

@@ -9,7 +9,7 @@ let
   nixvim' =
     (import (
       let
-        lock = builtins.fromJSON (builtins.readFile ../flake.lock);
+        lock = builtins.fromJSON (builtins.readFile ../flake/dev/flake.lock);
       in
       fetchTarball {
         url =