Writing

Notes from production.

• 2026-08-20

  Reconciling every call to an exact match

  How a reporting hub across several PBX systems earns trust — by proving, every day, that its numbers equal the phone systems' numbers.

  • reconciliation
  • postgresql
  • telephony
• 2026-07-15

  A multi-tenant control plane on Asterisk ARI with Postgres row-level security

  Design notes from Gaiastra — driving Asterisk 22 from TypeScript, isolating tenants in the database, and testing it 1,393 times.

  • asterisk
  • typescript
  • postgresql
  • architecture
• 2026-06-10

  Tokenised usage billing — design notes for on-chain settlement

  Why a usage-metered platform is a natural fit for on-chain settlement, and the constraints that decide the contract design.

  • solidity
  • web3
  • tokenization
  • design