diff --git a/nix/nix-1p/default.nix b/nix/nix-1p/default.nix
new file mode 100644
index 000000000..cd1af92d8
--- /dev/null
+++ b/nix/nix-1p/default.nix
@@ -0,0 +1,15 @@
+# The canonical source location of nix-1p is //nix/nix-1p in the TVL
+# depot: https://code.tvl.fyi/about/nix/nix-1p
+#
+# This file configures TVL CI to mirror the subtree to GitHub.
+{ depot ? { }, pkgs ? import <nixpkgs> { }, ... }:
+
+(pkgs.runCommandLocal "nix-1p.md" { } ''
+  cp ${./README.md} $out
+'').overrideAttrs (_: {
+  meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush {
+    filter = ":/nix/nix-1p";
+    remote = "git@github.com:tazjin/nix-1p.git";
+    ref = "refs/heads/master";
+  };
+})