Liegkat-Archiv delivers ALK converters for spatial data formats (EDBS, BGRUND, SQD, DFK, HK) and coordinate systems used in German cadastral agencies before ALKIS into KML and JML. It delivers Python packages and XSL files.
DFK: Duplicate File Killer will search a user specified directory/drive for duplicate files of any kind. It will eventually utilize image recognition for image comparison, audio matching algorhythms for sound file matching and CRC/MD5 hash testing.