From a934c32d27702bc34b4553aa79a471715f1a0b22 Mon Sep 17 00:00:00 2001
From: SandaruKasa <sandarukasa@ya.ru>
Date: Thu, 4 Jun 2026 16:55:06 +0300
Subject: [PATCH 1/2] btrfs-heatmap: adopt

---
 pkgs/by-name/bt/btrfs-heatmap/package.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/bt/btrfs-heatmap/package.nix b/pkgs/by-name/bt/btrfs-heatmap/package.nix
index 4222c249c9ca..5742ce3774a0 100644
--- a/pkgs/by-name/bt/btrfs-heatmap/package.nix
+++ b/pkgs/by-name/bt/btrfs-heatmap/package.nix
@@ -46,6 +46,8 @@ stdenv.mkDerivation (finalAttrs: {
     homepage = "https://github.com/knorrie/btrfs-heatmap";
     license = lib.licenses.mit;
     platforms = lib.platforms.linux;
-    maintainers = [ ];
+    maintainers = with lib.maintainers; [
+      sandarukasa
+    ];
   };
 })

From 808e13005f1c60abfc213129570f93830eaab850 Mon Sep 17 00:00:00 2001
From: SandaruKasa <sandarukasa@ya.ru>
Date: Thu, 4 Jun 2026 22:07:25 +0300
Subject: [PATCH 2/2] btrfs-heatmap: modernize a bit

---
 pkgs/by-name/bt/btrfs-heatmap/package.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/bt/btrfs-heatmap/package.nix b/pkgs/by-name/bt/btrfs-heatmap/package.nix
index 5742ce3774a0..ed564093f822 100644
--- a/pkgs/by-name/bt/btrfs-heatmap/package.nix
+++ b/pkgs/by-name/bt/btrfs-heatmap/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   src = fetchFromGitHub {
     owner = "knorrie";
     repo = "btrfs-heatmap";
-    rev = "v${finalAttrs.version}";
+    tag = "v${finalAttrs.version}";
     sha256 = "sha256-yCkuZqWwxrs2eS7EXY6pAOVVVSq7dAMxJtf581gX8vg=";
   };
 
@@ -40,6 +40,10 @@ stdenv.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
+  strictDeps = true;
+  __structuredAttrs = true;
+  enableParallelBuilding = true;
+
   meta = {
     description = "Visualize the layout of a mounted btrfs";
     mainProgram = "btrfs-heatmap";