diff --git a/artiq/pkgs/artiq-src.nix b/artiq/pkgs/artiq-src.nix
index 8b49e0b..004f263 100644
--- a/artiq/pkgs/artiq-src.nix
+++ b/artiq/pkgs/artiq-src.nix
@@ -1,7 +1 @@
-{ pkgs ? import <nixpkgs> {}}:
-pkgs.fetchgit {
-  url = "https://github.com/m-labs/artiq";
-  rev = import ./artiq-rev.nix;
-  sha256 = import ./artiq-hash.nix;
-  deepClone = true;
-}
+{ fetchgit }: <artiqSrc>
diff --git a/artiq/pkgs/artiq-version.nix b/artiq/pkgs/artiq-version.nix
new file mode 100644
index 0000000..b6607a6
--- /dev/null
+++ b/artiq/pkgs/artiq-version.nix
@@ -0,0 +1 @@
+"5e.localdev"