I build civic technology — engineered to standards I can actually verify, not just claim. Every project below ships with an honest read on what it proves and what it doesn't: fail-closed checks over green-checkmark theater, accessibility (WCAG 2.2) as a baseline rather than an afterthought, and privacy-by-design where the data is sensitive.

Based in Davis, CA. Site: chelseakr.com · LinkedIn

• gtfs-scorecard — Plain-language GTFS & GTFS-Realtime data-quality scorecard for small transit agencies. Live at gtfsscorecard.org.
• tods-validate — Validator for the Transit Operational Data Standard (TODS), with a CLI and GitHub Action.
• nearmiss — Open dataset and statistically honest analysis of road hazards and near-misses for safe-streets advocacy — exposure-normalized rates, real confidence intervals.
• fare-policy-assistant — Bilingual (EN/ES) assistant for California reduced-fare transit policy that answers only from dated, cited sources — with a public 118-case evaluation harness scoring groundedness and refusal.
• davis-bike-hazard-map — Crowdsourced, offline-first cycling-hazard map for Davis: report from your phone in seconds, route around trouble, optional hand-off to the city's 311 system.

• constituent-reconciler — Offline-first pipeline that resolves and deduplicates nonprofit constituent records, with a human review gate and consent-aware export.
• outcome-receipts — Funder outcome reports where every number is a receipt: each figure computed by deterministic SQL from the nonprofit's own data, held by a fail-closed grounding gate.

• ledger — Privacy-first community archive for queer histories and mutual-aid knowledge — content-addressed BagIt/PREMIS/Dublin Core preservation with consent-based selective disclosure.

• habitable — Court-ready, offline-first, end-to-end-encrypted habitability evidence for tenant unions: RFC 3161 timestamps, hash-linked chain of custody, peer-to-peer sync.
• swelter — Community heat & air-quality sensing network: calibrated open data, accessible map, OGC SensorThings export.
• olive-bark-logger — Privacy-first on-device noise monitor: logs sound-level events (never audio — nothing to leak or subpoena) and generates an honest, accessible report.

• personal-site — This portfolio site — bilingual EN/ES, WCAG 2.2 AAA, serverless AWS Bedrock chat backend.
• family-greenhouse — Shared plant-care journal for the household: per-plant schedules, reminders that find the right person, a shared care log.

Built through AI-agent-orchestrated development against a self-authored standards corpus (accessibility, privacy, security, honesty-in-claims), with human review gated on legal/SME/accessibility sign-off before anything ships.

Actively building since June 2026 — more of what's in progress will land here as it clears review.