refactor: remove eval-time impurities from chromium extensions

- Remove builtins.fetchurl-based version checking from lib.nix
- Move each extension into its own directory with default.nix + metadata.nix
- Add extensions/metadata.nix to compile all update metadata into a list
- Generate update checks via a standalone shell script in updates/

1 files changed, 8 insertions, 0 deletions

diff --git a/modules/web/chromium/extensions/searxng-home/metadata.nix b/modules/web/chromium/extensions/searxng-home/metadata.nix
new file mode 100644
index 0000000..0b232f2
--- /dev/null
+++ b/modules/web/chromium/extensions/searxng-home/metadata.nix
@@ -0,0 +1,8 @@
+{
+  pname = "searxng-home";
+  owner = "arpitchakladar";
+  repo = "searxng-home";
+  version = "0.2.0";
+  updateType = "release";
+  tagPrefix = "v";
+}