completely vibe-coded arc puzzle editor
Hosted at https://kirt.land/arc-editor.
Judge Cursor (auto model) for code quality, not me
json_to_images.py is for producing PNGs from the JSON files. It will produce 4 of them (training only, training+test input, test input only, test output). The website also has a PNG exporter for the two most useful of these.
Let me know if you'd like any changes.