In April there are only three weeks of program for the commemoration, but the program does not synchronize it well the three weeks.
The first week of the month there is no meeting, but the program does.
I think you posted this twice, so we are definitely past 10 posts on the same subject. I am pretty sure if you'd search the forum for '2020' you'd find Adam Meyers' workaround. No better solutions than that one...
For accessing the database my personal preference is http://sqlitebrowser.org/
For editing templates I like to use http://brackets.io/