BIP39 seed phrases: what they are and why the checksum matters
A practical explanation of entropy, mnemonic words, checksums and derivation without exposing or collecting real seed phrases.
Read guide →Practical technical notes
Original documentation and explanations based on the software and infrastructure we actually build and operate.
CUDA vs OpenCL for compute workloads
How the two GPU compute ecosystems differ, and why benchmarking the actual workload matters more than gaming benchmarks.
Read guide →SQLite vs PostgreSQL for small business software
When a local file database is ideal and when a central client/server database becomes the safer choice.
Read guide →Running DBRepairs with Docker and TrueNAS
Architecture, persistence, backups and safe update practices for the DBRepairs server edition.
Read guide →A practical 3-2-1 backup strategy for small workshops
How to combine application backups, host snapshots and off-site copies without making recovery complicated.
Read guide →Public cryptographic puzzles and distributed computing
What public key-search puzzles are, how coordinated work avoids duplication, and why realistic probability matters.
Read guide →Written for humans
No automatically generated filler. Each guide has a clear practical purpose.
Project-based
Topics come from DBRepairs, OpenPuzzle, SeedForge and real deployment work.
Updated when needed
Version-sensitive instructions are reviewed as the projects change.