From 46d999e950050d21d54ad25baa256830f1710ca1 Mon Sep 17 00:00:00 2001
From: Kieran Hannigan <overyonderstudios@gmail.com>
Date: Wed, 1 Jul 2026 15:48:40 +1000
Subject: [PATCH] libretro.pd777: init at 0-unstable-2026-06-19

Assisted-by: OpenAI Codex (GPT-5)
---
 .../li/libretroPackages/cores/pd777.nix       | 33 +++++++++++++++++++
 pkgs/by-name/li/libretroPackages/packages.nix |  2 ++
 2 files changed, 35 insertions(+)
 create mode 100644 pkgs/by-name/li/libretroPackages/cores/pd777.nix

diff --git a/pkgs/by-name/li/libretroPackages/cores/pd777.nix b/pkgs/by-name/li/libretroPackages/cores/pd777.nix
new file mode 100644
index 000000000000..fa27ae3bf448
--- /dev/null
+++ b/pkgs/by-name/li/libretroPackages/cores/pd777.nix
@@ -0,0 +1,33 @@
+{
+  lib,
+  fetchFromGitHub,
+  gitMinimal,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "pd777";
+  version = "0-unstable-2026-06-19";
+
+  src = fetchFromGitHub {
+    owner = "mittonk";
+    repo = "PD777";
+    rev = "118c8f893073f2e59eba6eb9fd1dd34d36318605";
+    hash = "sha256-j52fWDJ5V0+9IsFT2lhdrkNWe/oaUrGUsLiki84CRXM=";
+  };
+
+  sourceRoot = "source/source/libretro";
+
+  extraNativeBuildInputs = [ gitMinimal ];
+
+  postPatch = ''
+    # The libretro Makefile writes object files outside sourceRoot.
+    chmod -R u+w ../core
+  '';
+
+  meta = {
+    description = "Epoch Cassette Vision emulator core for libretro";
+    homepage = "https://github.com/mittonk/PD777";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ kaistarkk ];
+  };
+}
diff --git a/pkgs/by-name/li/libretroPackages/packages.nix b/pkgs/by-name/li/libretroPackages/packages.nix
index cb762108f18c..c36e08cfe9ec 100644
--- a/pkgs/by-name/li/libretroPackages/packages.nix
+++ b/pkgs/by-name/li/libretroPackages/packages.nix
@@ -136,6 +136,8 @@ lib.makeScope newScope (self: {
 
   parallel-n64 = self.callPackage ./cores/parallel-n64.nix { };
 
+  pd777 = self.callPackage ./cores/pd777.nix { };
+
   pcsx2 = self.callPackage ./cores/pcsx2.nix { };
 
   pcsx-rearmed = self.callPackage ./cores/pcsx-rearmed.nix { };