make snapshots with rsync and an union-mount filesystem without hardlinks


show du via esp8266 and servo


compare 2 lists of files from the same FS, get size of deletions, updates, inserts


pg_upgrade inside docker


convert HEIC-Format to JPEG


log maintainence jobs on servers


klarschiff analytics


migrate docker container to docker-compose.yml


managing and sharing secrets using a- and symmetric encryption

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