Real-time 2D time-series plotting

Been feeling the need for a high performance 2D time-series plotting library for a while, and finally I wrote one, with some help (but it's not AI slop - promise!). It's part of a larger repo, but only has SDL3 as an external dependency (for GPU acceleration). Therefore it should be possible to extract it and make it standalone without much trouble. Hopefully useful to somebody:

https://github.com/cvilas/grape/blob/main/modules/common/plot/README.md

https://redd.it/1u24c2j
@r_cpp