From dcd1d76783ac19dd664d1817bf52e54a7ea0ac2d Mon Sep 17 00:00:00 2001
From: Daniel Patterson <me@danielpatterson.dev>
Date: Sat, 25 Nov 2023 01:11:59 +0000
Subject: [PATCH] Release

---
 flake.nix | 85 +++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 64 insertions(+), 21 deletions(-)

diff --git a/flake.nix b/flake.nix
index 5425418..2b62281 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,16 +18,17 @@
           inherit system;
         };
 
-		beamPackages = pkgs.beam.packagesWith pkgs.beam.interpreters.erlang_26;
+        lib = pkgs.lib;
 
+        beamPackages = pkgs.beam.packagesWith pkgs.beam.interpreters.erlang_26;
 
-		erlang = beamPackages.erlang;
+        erlang = beamPackages.erlang;
 
-		elixir = beamPackages.elixir_1_15;
+        elixir = beamPackages.elixir_1_15;
 
-        elixir-ls = beamPackages.elixir-ls.override { elixir = elixir; };
+        elixir-ls = beamPackages.elixir-ls.override {elixir = elixir;};
 
-		hex = beamPackages.hex;
+        hex = beamPackages.hex;
 
         rebar3 = beamPackages.rebar3;
         rebar = beamPackages.rebar;
@@ -37,12 +38,12 @@
           modules = [
             {
               packages = [
-				elixir
-				elixir-ls
-				erlang
-				hex
-				rebar
-				rebar3
+                elixir
+                elixir-ls
+                erlang
+                hex
+                rebar
+                rebar3
                 pkgs.inotify-tools
                 pkgs.sqlite
               ];
@@ -50,18 +51,60 @@
           ];
         };
 
-		packages.default = beamPackages.mixRelease rec {
-		  pname = "wish";
-		  version = "nightly-231124";
+        packages.default = beamPackages.mixRelease rec {
+          pname = "wish";
+          version = "nightly-231124";
 
-		  src = ./.;
+          src = ./.;
 
-		  mixFodDeps = fetchMixDeps {
-			inherit src version;
-			pname = "mix-deps-${pname}";
-			hash = lib.fakeHash;
-		  };
-		};
+          postUnpack = ''
+            export ELIXIR_MAKE_CACHE_DIR=$TMP
+          '';
+
+          mixFodDeps = beamPackages.fetchMixDeps {
+            inherit src version;
+            pname = "mix-deps-${pname}";
+            hash = "sha256-W/peopoh52iM3K068eu5gQ9dsKJTIVZ+5M6lZjP+vcE=";
+          };
+        };
+
+        nixosModules.default = {
+          config,
+          lib,
+          pkgs,
+          ...
+        }:
+          with lib; let
+            cfg = config.wish.service;
+          in {
+            options.wish.service = {
+              enable = mkEnableOption "Enable the wish service.";
+
+              environmentFile = mkOption {
+                type = types.path;
+                description = lib.mdDoc ''
+                  Environment file as defined in {manpage}`systemd.exec(5)` passed to the service.
+
+                  This must contain at least `LIVEBOOK_PASSWORD` or
+                  `LIVEBOOK_TOKEN_ENABLED=false`.  See `livebook server --help`
+                  for other options.'';
+              };
+            };
+
+            config = mkIf cfg.enable {
+              systemd.services."wish" = {
+                wantedBy = ["multi-user.target"];
+
+                serviceConfig = let
+                  pkg = self.packages.${system}.default;
+                in {
+                  EnvironmentFile = cfg.environmentFile;
+                  Restart = "on-failure";
+                  ExecStart = "${pkg}/bin/wish start";
+                };
+              };
+            };
+          };
       }
     );
 }