Unfortunately, no. This is a simple pet project aimed at easing sharing/versioning of bookmarklets. The site is entirely static. Listing bookmarklets is, however, something I'd love to add.
A simple and sensible way to list bookmarklets may be scraping GitHub's own search [1]. Using a flag in gists such as `// bookmarklink-index` or similar may be a good way to go.
Feel free to add this if you want, I have it in my firefox called "UnfuckSlack" which puts the old slack UI back:
javascript:(function() { localStorage.setItem("localConfig_v2", localStorage.getItem("localConfig_v2").replace(/\"is_unified_user_client_enabled\":true/g, '\"is_unified_user_client_enabled\":false')); location.reload(); })();