From 6e53451c2f3c82b07cdceae66d46a3f4bca83da9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Sat, 24 Jan 2026 00:34:07 +0100
Subject: [PATCH] overlays/ghostty-dev: patch version when using npins

---
 nix/overlays/ghostty-dev.nix | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/nix/overlays/ghostty-dev.nix b/nix/overlays/ghostty-dev.nix
index 599c6542..153bf5d9 100644
--- a/nix/overlays/ghostty-dev.nix
+++ b/nix/overlays/ghostty-dev.nix
@@ -1,7 +1,20 @@
 let
   sources = import ../../npins;
 in
-final: prev: {
+final: prev:
+let
+  inherit (final) lib;
+in
+{
   # Dev version of ghostty, "tip"
-  ghostty = sources.ghostty-dev.asFlake.packages.${final.stdenv.hostPlatform.system}.default;
+  ghostty =
+    let
+      shortRev = lib.substring 0 8 sources.ghostty-dev.revision;
+    in
+    # NOTE:
+    # ghostty-dev internally builds a derivation used as a cache.
+    # Overriding the pname would cause cash mismatch.
+    sources.ghostty-dev.asFlake.packages.${final.stdenv.hostPlatform.system}.default.override {
+      revision = shortRev;
+    };
 }