From d6f68610cea17c67c982c9f4f66d4bf69ffcaf49 Mon Sep 17 00:00:00 2001
From: Kenichi Kamiya <kachick1@gmail.com>
Date: Sat, 2 Aug 2025 02:46:51 +0900
Subject: [PATCH 1/2] chawan: correct license

https://git.sr.ht/~bptato/chawan/tree/v0.2.1/item/UNLICENSE
https://git.sr.ht/~bptato/chawan/tree/v0.2.1/item/README.md?view-source#L129
---
 pkgs/by-name/ch/chawan/package.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/by-name/ch/chawan/package.nix b/pkgs/by-name/ch/chawan/package.nix
index 981fa6153230..57578488f0aa 100644
--- a/pkgs/by-name/ch/chawan/package.nix
+++ b/pkgs/by-name/ch/chawan/package.nix
@@ -79,7 +79,7 @@ stdenv.mkDerivation (finalAttrs: {
     description = "Lightweight and featureful terminal web browser";
     homepage = "https://sr.ht/~bptato/chawan/";
     changelog = "https://git.sr.ht/~bptato/chawan/refs/v${finalAttrs.version}";
-    license = lib.licenses.publicDomain;
+    license = lib.licenses.unlicense;
     platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ ];
     mainProgram = "cha";

From da0b0a62fc6f96b2a6719b6b0768cbc941f94aa2 Mon Sep 17 00:00:00 2001
From: Kenichi Kamiya <kachick1@gmail.com>
Date: Sat, 2 Aug 2025 02:41:07 +0900
Subject: [PATCH 2/2] chawan: add versionCheckHook

---
 pkgs/by-name/ch/chawan/package.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/by-name/ch/chawan/package.nix b/pkgs/by-name/ch/chawan/package.nix
index 57578488f0aa..9253b0cdbc8c 100644
--- a/pkgs/by-name/ch/chawan/package.nix
+++ b/pkgs/by-name/ch/chawan/package.nix
@@ -12,6 +12,7 @@
   brotli,
   zlib,
   gitUpdater,
+  versionCheckHook,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -73,6 +74,12 @@ stdenv.mkDerivation (finalAttrs: {
       wrapProgram $out/bin/mancha ${makeWrapperArgs}
     '';
 
+  nativeInstallCheckInputs = [
+    versionCheckHook
+  ];
+  doInstallCheck = true;
+  versionCheckProgramArg = "--version";
+
   passthru.updateScript = gitUpdater { rev-prefix = "v"; };
 
   meta = {