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What I've learned building MVPs, fixing slow Next.js apps, and shipping AI features that don't fall apart in production. Written for founders who want the honest version, not the polished agency version.
A practical passkey rollout for SaaS teams: design WebAuthn boundaries, migrate existing users, protect recovery and measure adoption without lockouts.
A practical PostgreSQL 19 rehearsal for SaaS teams: test compatibility, choose an upgrade path, validate workloads and design a credible rollback.
A practical sandbox blueprint for coding agents: isolate files, restrict network access, broker credentials, limit resources and keep merges human-controlled.