revert "tests: disable `nixosSearch`"

.cirrus.yml

@@ -35,6 +35,7 @@ task:
     - name: flake
       build_script:
         - nix flake check
+        - ./test/nixos-search/ci-test.sh
 
     - name: shellcheck
       build_script:

README.md

@@ -53,6 +53,8 @@ Hint: To show a table of contents, click the button (![Github TOC button](docs/i
 top left corner of the documents.
 
 <!-- TODO-EXTERNAL: -->
+<!-- Change query to `nix-bitcoin` when upstream search has been fixed -->
+* [NixOS options search](https://search.nixos.org/flakes?channel=unstable&sort=relevance&type=options&query=bitcoin)
 * [Hardware requirements](docs/hardware.md)
 * [Installation](docs/install.md)
 * [Configuration and maintenance](docs/configuration.md)

test/run-tests.sh

@@ -275,11 +275,6 @@ flake() {
 
 # Test generating module documentation for search.nixos.org
 nixosSearch() {
-    # TODO-EXTERNAL:
-    # Remove this when nixos-search has been fixed
-    echo "Skipping test nixosSearch"
-    return
-
     if ! checkFlakeSupport "nixosSearch"; then return; fi
 
     if [[ $_nixBitcoinInCopiedSrc ]]; then