https://isogeny.co.uk/log Architecture decisions, post-mortems, and trade-offs from the work we ship. en-GB Sat, 20 Jun 2026 13:20:07 GMT https://isogeny.co.uk/log/no-social-no-leaderboards https://isogeny.co.uk/log/no-social-no-leaderboards Sat, 20 Jun 2026 13:20:07 GMT 2026-06-20T13:20:07.854Z The competitors are addictive-by-design. Celer is deliberately not. DECISION https://isogeny.co.uk/log/open-tile-system https://isogeny.co.uk/log/open-tile-system Sat, 20 Jun 2026 13:20:07 GMT 2026-06-20T13:20:07.854Z Users add their own decks to tiles, rather than consuming a curated library. DECISION https://isogeny.co.uk/log/pseudonymising-cv-before-llm https://isogeny.co.uk/log/pseudonymising-cv-before-llm Sat, 20 Jun 2026 13:20:07 GMT 2026-06-20T13:20:07.854Z A token-swap pipeline replaces PII with deterministic stand-ins before any payload leaves our trust boundary. REGULATORY