I played around with it a few years ago: <https://boston.conman.org/2015/06/16.1 https://boston.conman.org/2015/06/16.1> On the bad side: it's nearly unusable

I played around with it a few years ago: <https://boston.conman.org/2015/06/16.1 https://boston.conman.org/2015/06/16.1> On the bad side: it's nearly unusable without the pads, you're restricted to 64 bytes for everything (program and variables) and it leaks memory. On the plus side, it's insane they packed an IDE into 4K with features I've never seen elsewhere.