Field Notes

From the porch, not the marketing deck.

Short essays from our team and from the operators we work with. No "thought leadership." No 12-step LinkedIn posts. Just what we're learning when we're sitting in someone's kitchen at 8 AM.

APR 22, 2026 · ENGINEERING · 7 MIN

Why GPS isn't enough.

The geofence is the easiest thing to fake in a home-health visit. We've watched aides spoof their location from a parking lot, an emulator, and once, a moving car. Here's what GPS-only EVV gets wrong.

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APR 8, 2026 · COMPLIANCE · 9 MIN

BIPA-safe biometric architecture.

Most "biometric verification" products store the biometric. That's a class-action lawsuit waiting to be served. Here's the architecture we built to make sure VisitLock cannot be the defendant on that suit.

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MAR 26, 2026 · OPERATIONS · 6 MIN

EVV hard-edits, explained.

If you've ever had a perfectly clean claim rejected for "Code 8204 — visit verification mismatch," this post is for you. A short walk through what a hard-edit actually is, and how to stop seeing them.

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