This is a somewhat hacky fork of glitch-soc that adds standalone support (meaning your browser can OAuth against an arbitrary instance). It's currently tested to work (for the most part) with Iceshrimp and GoToSocial (and obviously Mastodon).
To try this out, go to [masto-fe.iceshrimp.dev](https://masto-fe.iceshrimp.dev), type in your instance domain name (for split domain setups, use the web domain) & press the button.