From c68342244a0c0b6df85b334d8e39a21d867ad5bb Mon Sep 17 00:00:00 2001
From: Karolis Stasaitis <contact@carlossless.io>
Date: Mon, 25 May 2026 08:26:13 +0200
Subject: [PATCH 1/2] python3Packages.pygreat: 2024.0.5 -> 2026.0.0

---
 pkgs/development/python-modules/pygreat/default.nix | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/pygreat/default.nix b/pkgs/development/python-modules/pygreat/default.nix
index bb3bd2ee8f10..bee64dd72b55 100644
--- a/pkgs/development/python-modules/pygreat/default.nix
+++ b/pkgs/development/python-modules/pygreat/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "pygreat";
-  version = "2024.0.5";
+  version = "2026.0.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "greatscottgadgets";
     repo = "libgreat";
     tag = "v${version}";
-    hash = "sha256-2PFeCG7m8qiK3eBX2838P6ZsLoQxcJBG+/TppUMT6dE=";
+    hash = "sha256-m+s2TAJK7UhKWbuSd5ec1O40WeMXxJyTD9yqPOr0LEM=";
   };
 
   sourceRoot = "${src.name}/host";
@@ -26,8 +26,6 @@ buildPythonPackage rec {
       --replace-fail 'dynamic = ["version"]' 'version = "${version}"'
   '';
 
-  pythonRemoveDeps = [ "backports.functools_lru_cache" ];
-
   build-system = [ setuptools ];
 
   dependencies = [ pyusb ];

From e04b73aa6a7a2e8c634ee2b2a3bb6d75c651d001 Mon Sep 17 00:00:00 2001
From: Karolis Stasaitis <contact@carlossless.io>
Date: Mon, 25 May 2026 08:26:13 +0200
Subject: [PATCH 2/2] python3Packages.cynthion: relax pygreat dependency

Upstream pins pygreat~=2024.0.5, but cynthion 0.2.4 works fine against
pygreat 2026.0.0; drop the constraint so the package builds against
the current pygreat.
---
 pkgs/development/python-modules/cynthion/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/python-modules/cynthion/default.nix b/pkgs/development/python-modules/cynthion/default.nix
index ebaaea6079cf..a99fa93099bd 100644
--- a/pkgs/development/python-modules/cynthion/default.nix
+++ b/pkgs/development/python-modules/cynthion/default.nix
@@ -51,6 +51,8 @@ buildPythonPackage rec {
     setuptools
   ];
 
+  pythonRelaxDeps = [ "pygreat" ];
+
   pythonRemoveDeps = [ "future" ];
 
   dependencies = [