https://play.webrcade.com/ ~ this is perfection within the ~ instant with titles that play like the classics on any given platform ~ even has controller support
@robbie@mastodon.theshowshow.tv
A quick search and to my delight I found the source code... maybe a self-hosted version with some nostalgic ROMs is in order 
https://github.com/webrcade/webrcade
Elk is a nimble Mastodon web client. You can login to your Mastodon account and use it to interact with the fediverse.
Expect some bugs and missing features here and there. Elk is Open Source and we're actively improving it as a community project. Join us and let's build it together!
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