JSON is a good format. It's a shame it doesn't support comments or dates (without hacks), it could have been a great format.
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Bril is a cute intermediate language for teaching (think simplified LLVM IR): https://www.cs.cornell.edu/~asampson/blog/bril.html
The idea of providing a standard JSON format to help students write basic passes is really elegant.
WebAssembly seems like a totally reasonable bytecode format, but I've not had many opportunities to use it so far.
Has wasm found its 'killer app' yet?
Copilot doesn't offer a way of disabling completion inside comments. People have discovered a comical workaround: swearing in the comment! https://github.com/orgs/community/discussions/8062#discussioncomment-11902740