Same here. I have so much great AS3 code that I can't even run for myself anymore. I used to run my own billing app that I wrote in AS3 for generating highly custom invoice templates. Even after I shut it down I still used it locally until Adobe destroyed Flash Player.

There was a pretty simple way to build a chromium based app with electron that allows you to run old flash application. I built this a few years ago for some customers in my old company because we had a flash backend which we couldn't port to js with reasonable effort.

A quick Google research shows that chromium disabled flash a while ago but you should still be able to use an older version in electron projects. Didn't test it but could be worth a shot.

There's a Chrome extension for a Flash player, so it may be possible to bundle it and enable by default in an Electron app.

AS3 is where I first dove into another’s codebase - modding games was wild back then!

> Can't even run that anymore.

Try the the Flash Player emulator ruffle, it might be able to run it.

https://ruffle.rs/

It might, but it's hit or miss for AS3. Hopefully it gets better over time!

> barely scratches

I guess you are referring to Flash as a whole IDE, not the language itself.