I think it's due to they are doing a funny business to parse the progress, that's pretty much vibed and no one care. Like instead of using curl's progress, they re-invented a progress tracking with the tracing interface (--trace-ascii), byte by byte :(

https://github.com/anomalyco/opencode/issues/22998 https://github.com/anomalyco/opencode/issues/53702

I don't think fast gpu rendering terminals should be mandatory for this kind of thing, and if you should have an option that facilitates the need for one then might I suggest falling back to something sensible rather than stalling out for forever when the user doesn't render glyphs as fast as you want them to?

either that or fail outright; dont waste my time.

If it doesn't work at least ok with something like xterm, someone really needs to reconsider some life decisions. Htop makes it work, why should a terminal emulator need to crack the engima just to render silly stuff?

Well, stdout is not typically implemented for the purpose of simulating graphics rendering via character manipulation.

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