Release version 1.12.1

Introduce explicit concurrency settings to the CI and mark-stable
workflows to serialize runs per repository and ref. This prevents
overlapping executions for the same branch or tag and makes pipeline
behavior more predictable during rapid pushes.

https://chatgpt.com/share/6988bef0-1a0c-800f-93df-7a6c1bdc0331

.github/workflows/ci.yml

@@ -6,6 +6,10 @@ on:
       - main
   pull_request:
 
+concurrency:
+  group: global-ci-${{ github.repository }}-${{ github.ref_name }}
+  cancel-in-progress: false
+
 jobs:
   test-unit:
     uses: ./.github/workflows/test-unit.yml

.github/workflows/mark-stable.yml

@@ -1,5 +1,9 @@
 name: Mark stable commit
 
+concurrency:
+  group: mark-${{ github.repository }}-${{ github.ref_name }}
+  cancel-in-progress: false
+
 on:
   push:
     branches:

CHANGELOG.md

@@ -1,3 +1,13 @@
+## [1.12.1] - 2026-02-14
+
+* pkgmgr now prefers distro-managed nix binaries on Arch before profile/PATH resolution, preventing libllhttp mismatch failures after pacman system upgrades.
+
+
+## [1.12.0] - 2026-02-08
+
+* Adds explicit concurrency groups to the CI and mark-stable workflows to prevent overlapping runs on the same branch and make pipeline execution more predictable.
+
+
 ## [1.11.2] - 2026-02-08
 
 * Removes the v* tag trigger from the mark-stable workflow so it runs only on branch pushes and avoids duplicate executions during releases.

flake.nix

@@ -32,7 +32,7 @@
         rec {
           pkgmgr = pyPkgs.buildPythonApplication {
             pname   = "package-manager";
-            version = "1.11.2";
+            version = "1.12.1";
 
             # Use the git repo as source
             src = ./.;

packaging/arch/PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Kevin Veen-Birkenbach <info@veen.world>
 
 pkgname=package-manager
-pkgver=1.11.2
+pkgver=1.12.1
 pkgrel=1
 pkgdesc="Local-flake wrapper for Kevin's package-manager (Nix-based)."
 arch=('any')

packaging/debian/changelog

@@ -1,3 +1,15 @@
+package-manager (1.12.1-1) unstable; urgency=medium
+
+  * pkgmgr now prefers distro-managed nix binaries on Arch before profile/PATH resolution, preventing libllhttp mismatch failures after pacman system upgrades.
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Sat, 14 Feb 2026 23:26:17 +0100
+
+package-manager (1.12.0-1) unstable; urgency=medium
+
+  * Adds explicit concurrency groups to the CI and mark-stable workflows to prevent overlapping runs on the same branch and make pipeline execution more predictable.
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Sun, 08 Feb 2026 18:26:25 +0100
+
 package-manager (1.11.2-1) unstable; urgency=medium
 
   * Removes the v* tag trigger from the mark-stable workflow so it runs only on branch pushes and avoids duplicate executions during releases.

packaging/fedora/package-manager.spec

@@ -1,5 +1,5 @@
 Name:           package-manager
-Version:        1.11.2
+Version:        1.12.1
 Release:        1%{?dist}
 Summary:        Wrapper that runs Kevin's package-manager via Nix flake
 
@@ -74,6 +74,12 @@ echo ">>> package-manager removed. Nix itself was not removed."
 /usr/lib/package-manager/
 
 %changelog
+* Sat Feb 14 2026 Kevin Veen-Birkenbach <kevin@veen.world> - 1.12.1-1
+- pkgmgr now prefers distro-managed nix binaries on Arch before profile/PATH resolution, preventing libllhttp mismatch failures after pacman system upgrades.
+
+* Sun Feb 08 2026 Kevin Veen-Birkenbach <kevin@veen.world> - 1.12.0-1
+- Adds explicit concurrency groups to the CI and mark-stable workflows to prevent overlapping runs on the same branch and make pipeline execution more predictable.
+
 * Sun Feb 08 2026 Kevin Veen-Birkenbach <kevin@veen.world> - 1.11.2-1
 - Removes the v* tag trigger from the mark-stable workflow so it runs only on branch pushes and avoids duplicate executions during releases.
 

pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "kpmx"
-version = "1.11.2"
+version = "1.12.1"
 description = "Kevin's package-manager tool (pkgmgr)"
 readme = "README.md"
 requires-python = ">=3.9"

scripts/nix/lib/path.sh

@@ -36,16 +36,17 @@ real_exe() {
 
 # Resolve nix binary path robustly (works across distros + Arch /usr/sbin)
 resolve_nix_bin() {
-  local nix_cmd=""
+  # IMPORTANT: prefer distro-managed locations first.
-  nix_cmd="$(command -v nix 2>/dev/null || true)"
+  # This avoids pinning /usr/local/bin/nix to a stale user-profile nix binary.
-  [[ -n "$nix_cmd" ]] && real_exe "$nix_cmd" && return 0
-
-  # IMPORTANT: prefer system locations before /usr/local to avoid self-symlink traps
   [[ -x /usr/sbin/nix ]]      && { echo "/usr/sbin/nix"; return 0; } # Arch package can land here
   [[ -x /usr/bin/nix ]]       && { echo "/usr/bin/nix"; return 0; }
   [[ -x /bin/nix ]]           && { echo "/bin/nix"; return 0; }
 
-  # /usr/local last, and only if it resolves to a real executable
+  local nix_cmd=""
+  nix_cmd="$(command -v nix 2>/dev/null || true)"
+  [[ -n "$nix_cmd" ]] && real_exe "$nix_cmd" && return 0
+
+  # /usr/local after system locations, and only if it resolves to a real executable
   [[ -e /usr/local/bin/nix ]] && real_exe "/usr/local/bin/nix" && return 0
 
   [[ -x /nix/var/nix/profiles/default/bin/nix ]] && {