diff --git a/pkgs/by-name/ar/armips/package.nix b/pkgs/by-name/ar/armips/package.nix
index a4881193b7da..c9a883d0b2a5 100644
--- a/pkgs/by-name/ar/armips/package.nix
+++ b/pkgs/by-name/ar/armips/package.nix
@@ -5,23 +5,33 @@
   cmake,
 }:
 
-clangStdenv.mkDerivation rec {
+clangStdenv.mkDerivation (finalAttrs: {
   pname = "armips";
   version = "0.11.0";
 
   src = fetchFromGitHub {
     owner = "Kingcom";
     repo = "armips";
-    rev = "v${version}";
-    sha256 = "sha256-L+Uxww/WtvDJn1xZqoqA6Pkzq/98sy1qTxZbv6eEjbA=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-L+Uxww/WtvDJn1xZqoqA6Pkzq/98sy1qTxZbv6eEjbA=";
   };
 
   postPatch = ''
     substituteInPlace CMakeLists.txt \
-      --replace-fail c++11 c++17 \
-      --replace-fail "cmake_minimum_required(VERSION 2.8)" "cmake_minimum_required(VERSION 3.13)" # done by https://github.com/Kingcom/armips/commit/e1ed5bf0f4565250b98b0ddfb9112f15dc8e8e3b upstream, patch not directly compatible
+      --replace-fail c++11 c++17
+  ''
+  # done by https://github.com/Kingcom/armips/commit/e1ed5bf0f4565250b98b0ddfb9112f15dc8e8e3b upstream, patch not directly compatible
+  + ''
+    substituteInPlace CMakeLists.txt \
+      --replace-fail \
+        "cmake_minimum_required(VERSION 2.8)" \
+        "cmake_minimum_required(VERSION 3.13)"
   '';
 
+  # Fix GCC 15 compatibility
+  # error: unknown type name 'uint32_t'
+  env.CXXFLAGS = "-include cstdint";
+
   nativeBuildInputs = [ cmake ];
 
   installPhase = ''
@@ -48,4 +58,4 @@ clangStdenv.mkDerivation rec {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ marius851000 ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/skytemple-rust/default.nix b/pkgs/development/python-modules/skytemple-rust/default.nix
index 5bbb8c5eb498..c4026e949f5d 100644
--- a/pkgs/development/python-modules/skytemple-rust/default.nix
+++ b/pkgs/development/python-modules/skytemple-rust/default.nix
@@ -1,17 +1,21 @@
 {
   lib,
-  stdenv,
   buildPythonPackage,
-  cargo,
   fetchFromGitHub,
-  libiconv,
+
+  # build-system
+  setuptools-rust,
+
+  # nativeBuildInputs
+  cargo,
   rustPlatform,
   rustc,
-  setuptools-rust,
+
+  # dependencies
   range-typed-integers,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "skytemple-rust";
   version = "1.8.5";
   pyproject = true;
@@ -19,35 +23,45 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "SkyTemple";
     repo = "skytemple-rust";
-    rev = version;
+    tag = finalAttrs.version;
     hash = "sha256-yJ78P00h4SITVuDnIh5IIlWkoed/VtIw3NB8ETB95bk=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
-    inherit pname version src;
+    inherit (finalAttrs) pname version src;
     hash = "sha256-9OgUuuMuo2l4YsZMhBZJBqKqbNwj1W4yidoogjcNgm8=";
   };
 
-  buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [
-    libiconv
-  ];
-  nativeBuildInputs = [
+  env = {
+    GETTEXT_SYSTEM = true;
+
+    # Python 3.14 compatibility
+    # error: the configured Python interpreter version (3.14) is newer than PyO3's maximum supported
+    # version (3.13)
+    PYO3_USE_ABI3_FORWARD_COMPATIBILITY = 1;
+  };
+
+  build-system = [
     setuptools-rust
-    rustPlatform.cargoSetupHook
+  ];
+
+  nativeBuildInputs = [
     cargo
+    rustPlatform.cargoSetupHook
     rustc
   ];
-  propagatedBuildInputs = [ range-typed-integers ];
 
-  GETTEXT_SYSTEM = true;
+  dependencies = [
+    range-typed-integers
+  ];
 
   doCheck = false; # tests for this package are in skytemple-files package
   pythonImportsCheck = [ "skytemple_rust" ];
 
   meta = {
-    homepage = "https://github.com/SkyTemple/skytemple-rust";
     description = "Binary Rust extensions for SkyTemple";
+    homepage = "https://github.com/SkyTemple/skytemple-rust";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ marius851000 ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/skytemple-ssb-emulator/default.nix b/pkgs/development/python-modules/skytemple-ssb-emulator/default.nix
index fdf959f56837..cd27fc5abdc9 100644
--- a/pkgs/development/python-modules/skytemple-ssb-emulator/default.nix
+++ b/pkgs/development/python-modules/skytemple-ssb-emulator/default.nix
@@ -27,7 +27,7 @@
   # dependencies
   range-typed-integers,
 }:
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "skytemple-ssb-emulator";
   version = "1.8.2";
   pyproject = true;
@@ -35,15 +35,22 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "SkyTemple";
     repo = "skytemple-ssb-emulator";
-    tag = version;
+    tag = finalAttrs.version;
     hash = "sha256-zmLEvE96gkElTggcRG9fZDrJPLOXeNuSk49zXQAB69Y=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
-    inherit src pname;
+    inherit (finalAttrs) src pname version;
     hash = "sha256-MSPqQmC70pq+sEM8zJrrFiz32dorOJxr2G/y2H4EUQI=";
   };
 
+  env = {
+    # Python 3.14 compatibility
+    # error: the configured Python interpreter version (3.14) is newer than PyO3's maximum supported
+    # version (3.13)
+    PYO3_USE_ABI3_FORWARD_COMPATIBILITY = 1;
+  };
+
   build-system = [
     meson
     setuptools
@@ -81,4 +88,4 @@ buildPythonPackage rec {
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ marius851000 ];
   };
-}
+})