YEAR 2022 MARCH 31st Well, frontend development is just ongoing. APRIL 1st Costed one hour try to find an event propagation problem, but finally found it's a matter of CSS selector. BTW frontend can communicate with backend now. 2nd (Formally) Started playing with Android. Costed 4 hours to find why Java class (on android) always can't be found, but finally realized pyjnius can't work with python thread/subprocess, while I'm using ThreadingHTTPServer. See "Note" around: https://python-for-android.readthedocs.io/en/latest/buildoptions/#webview NEVER MISS ANY SENTENCE OF A DOCUMENT 3rd Costed the whole day to solve WebView problem -- it doesn't do reaction to by default. Finally done with library AdvancedWebView, but still with some hacks. ... It's now 4th 2:00 a.m. though 4th Purged many small problems. Wished to release it today, but no luck... 5th Bundle script, optimized project structure. It's finally ready... 6th Documentation. What else? First Release!