As well as commercial proprietary projects, I also work on open source software implemented in Go.
db2xlsx
db2xlsx connects to a MySQL (or equivalent such as MariaDB) database, extracts the tables and their columns, and exports this data to an XLSX file which can be opened in Microsoft Excel and LibreOffice.
sym-check
sym-check is a command line tool which scans a Sympl installation and reports on issues such as out of date PHP versions, no HSTS etc.
sym-check is an independent tool and not affiliated with or endorsed by the Sympl Project or Mythic Beasts.