Grouping natural numbers into n/2 pairwise coprime groups https://sudonull.com/grouping-natural-numbers-into-n-2-pairwise-coprime-groups
Learn the algorithm for dividing {1..n} into n/2 groups with pairwise coprime numbers. Formula for odd composites, Python code, mathematical proof. For developers and mathematicians.
Migration from MajorDoMo to osysHome: step-by-step guide without downtime https://sudonull.com/migration-from-majordomo-to-osyshome-step-by-step-guide-without-downtime
How to transfer home automation without downtime. Parallel launch tactics, device grouping, refactoring of outdated components. Practical cases.
Calibre 9.7: AI and content server fixes https://sudonull.com/calibre-9-7-ai-and-content-server-fixes
Calibre 9.7 release fixes bugs in the viewer, AI backends, and MTP driver. New features: annotation grouping, touchpad gestures, HTTPS-offline. Download for Linux/Windows/macOS and test stability.
Avec: swipes for sorting email like in Tinder https://sudonull.com/avec-swipes-for-sorting-email-like-in-tinder
Learn how Avec changes email processing: swipes left-right, voice replies, AI grouping. Free for Gmail. Test the new approach to inbox.
TTL in ClickHouse: data lifecycle management https://sudonull.com/ttl-in-clickhouse-data-lifecycle-management
How TTL in ClickHouse automatically deletes, moves to HDD/S3, aggregates, and anonymizes data. Examples for GDPR, tiered storage, and grouping old records.