posts — dídac

never let the client tell you who owns it
go · 13 min

↵ open 02 2026-08-04

my production build was 46 releases behind and nothing failed
infrastructure · 10 min

↵ open 03 2026-07-16

i said i quit testing. then i shipped seven things.
testing · 5 min

↵ open 04 2026-07-08

verifactu in go: a sha-256 hash chain is spain's answer to invoice fraud
go · 11 min

↵ open 05 2026-06-22

docker stack deploy silently dropped my command (and 3 other swarm lies)
infrastructure · 11 min · solo founder infrastructure series

↵ open 06 2026-06-15

one schema crate, two analyzers: bilingual full-text search with embedded tantivy
rust · 14 min

↵ open 07 2026-06-08

two databases, one binary: duckdb for reads, sqlite for state
rust · 12 min

↵ open 08 2026-06-01

brute-forcing the pit window: when 'just try them all' is the right call
rust · 10 min

↵ open 09 2026-05-25

a query language in ~1000 lines: lexer, parser, evaluator
rust · 12 min · logmole series

↵ open 10 2026-05-18

don't let your backtest lie to you: leakage guards for a solo research codebase
python · 12 min