is the source code available for apify actors? most of the links are 404s

In the actors page, you can choose Information > Source Code > View on Github, but most of these links seem to 404.
For example apify/google-search-scraper goes to https://github.com/apify-projects/store-google-search/tree/master/actors/google-search-main
or apify/website-content-crawler goes to https://github.com/apify/store-website-content-crawler