Problems

Pyodide: formulas 1.3.0+ bundle size increased by scipy dependency

Self-hosting Pyodide for offline Capacitor/Electron apps fails loading packages (micropip) without CDN wheels

Pyodide SharedArrayBuffer unreliable in Capacitor WKWebView on iOS without HTTP headers

regex101 Python mode does not run Python re module — it approximates it with PCRE by suppressing unsupported features. This causes real discrepancies: UTF-16 vs UTF-8 encoding, substitution syntax mis