Move Bookwyrm systemd unit from package to NixOS module

bookwyrm.nix

@@ -116,17 +116,6 @@ mkDerivation {
 
 		chmod +x $out/bin/bookwyrm
 
-		# Systemd units
-
-		cat <<- EOF > $out/lib/systemd/system/bookwyrm.service
-			[Unit]
-			After=network.target
-
-			[Service]
-			ExecStart=$out/bin/bookwyrm
-			WorkingDirectory=/var/lib/bookwyrm
-		EOF
-
 		runHook postInstall
 	'' ;
 }

nixos-module.nix

@@ -51,4 +51,19 @@
 			)
 		] ;
 	} ;
+
+	systemd = {
+		units = {
+			bookwyrm = {
+				text = ''
+					[Unit]
+					After=network.target
+
+					[Service]
+					ExecStart=$out/bin/bookwyrm
+					WorkingDirectory=/var/lib/bookwyrm
+				'' ;
+			} ;
+		} ;
+	} ;
 }

readme.md

@@ -3,7 +3,7 @@
 ## Description
 
 An assortment of Nix packages not in the official collection.
-They can either be imported individually or using the overlay if you're on NixOS.
+They can either be imported individually or using the module if you're on NixOS.
 
 These are purposefully written without support for [overriding](https://nixos.org/guides/nix-pills/17-nixpkgs-overriding-packages) in order to minimise complexity.
 If you want to build upon them I encourage you to fork this repository.
@@ -23,13 +23,13 @@ pkgs . callPackage ( import ( pkgs . fetchurl {
 } ) ) {}
 ```
 
-Using the NixOS overlay:
+Using the NixOS module:
 
 ```nix
 imports = [
 	( fetchTarball {
 		url = "https://kernelmaft.com/forgejo/zedfrigg/nix-packages/archive/432123bb0984dd766c16ac06b7e3ef4cfee36145.tar.gz" ;
 		sha256 = "sha256:1wx7ljabgndandcd11jmr590jfpkhs55mqrgksf24ji90m37wpq0" ;
-	} + "/nixos-overlay.nix" )
+	} + "/nixos-module.nix" )
 ] ;
 ```