docs,tests: fetch nmd and nmt using fetchTarball

This simplifies the code a bit and avoids using experimental Flake
functionality. If Flakes become stable before NixOS 22.11 then we can
consider having nmd and nmt as Flake inputs. Maybe could then also
avoid the need for flake-compat.

default.nix

@@ -1,16 +1,6 @@
 { pkgs ? import <nixpkgs> { } }:
 
-let
-
-  flake = (import
-    (let lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-    in fetchTarball {
-      url =
-        "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }) { src = ./.; }).defaultNix;
-
-in rec {
+rec {
   docs = with import ./docs { inherit pkgs; }; {
     html = manual.html;
     manPages = manPages;
@@ -26,6 +16,4 @@ in rec {
   nixos = import ./nixos;
 
   path = ./.;
-
-  inherit (flake) inputs;
 }

docs/default.nix

@@ -1,10 +1,16 @@
-{ pkgs, nmdSrc ? (import ./.. { }).inputs.nmd
+{ pkgs
 
-  # Note, this should be "the standard library" + HM extensions.
+# Note, this should be "the standard library" + HM extensions.
 , lib ? import ../modules/lib/stdlib-extended.nix pkgs.lib }:
 
 let
 
+  nmdSrc = fetchTarball {
+    url =
+      "https://gitlab.com/api/v4/projects/rycee%2Fnmd/repository/archive.tar.gz?sha=91dee681dd1c478d6040a00835d73c0f4a4c5c29";
+    sha256 = "07szg39wmna287hv5w9hl45wvm04zbh0k54br59nv3yzvg9ymlj4";
+  };
+
   nmd = import nmdSrc { inherit lib pkgs; };
 
   # Make sure the used package is scrubbed to avoid actually

flake.nix

@@ -2,16 +2,9 @@
   description = "Home Manager for Nix";
 
   inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-  inputs.nmd.url = "gitlab:rycee/nmd";
-  inputs.nmd.flake = false;
-  inputs.nmt.url = "gitlab:rycee/nmt";
-  inputs.nmt.flake = false;
-
   inputs.utils.url = "github:numtide/flake-utils";
-  inputs.flake-compat.url = "github:edolstra/flake-compat";
-  inputs.flake-compat.flake = false;
 
-  outputs = { self, nixpkgs, nmd, utils, ... }:
+  outputs = { self, nixpkgs, utils, ... }:
     {
       nixosModules = rec {
         home-manager = import ./nixos;
@@ -67,10 +60,7 @@
     } // utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-        docs = import ./docs {
-          inherit pkgs;
-          nmdSrc = nmd;
-        };
+        docs = import ./docs { inherit pkgs; };
       in {
         packages = rec {
           home-manager = pkgs.callPackage ./home-manager { };

tests/default.nix

@@ -4,7 +4,11 @@ let
 
   lib = import ../modules/lib/stdlib-extended.nix pkgs.lib;
 
-  inherit ((import ./.. { }).inputs) nmt;
+  nmt = fetchTarball {
+    url =
+      "https://gitlab.com/api/v4/projects/rycee%2Fnmt/repository/archive.tar.gz?sha=d83601002c99b78c89ea80e5e6ba21addcfe12ae";
+    sha256 = "1xzwwxygzs1cmysg97hzd285r7n1g1lwx5y1ar68gwq07a1rczmv";
+  };
 
   modules = import ../modules/modules.nix {
     inherit lib pkgs;