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Regimio

Blog

The receipts.

Deep-dives on the math, the research, and the design decisions behind Regimio. Written for the user who already knows their stack.

11 posts

All writing.

TRT·8 min

Trough-day blood draws: the TRT timing nobody tells you about

Lab timing relative to your injection radically changes what you see on the panel. Here's how to time a trough draw, why it matters, and how Regimio automates the reminder.

May 10, 2026
Privacy·7 min

Why privacy is the precondition, not a feature

Regimio is local-first because protocol data is sensitive. Here's the architecture, the threat model, and what we'll never do.

May 8, 2026
GLP-1·7 min

GLP-1 titration ladders: tirzepatide, semaglutide, retatrutide

What an honest GLP-1 titration ladder looks like for tirzepatide, semaglutide, and retatrutide · plus how to log it without your reminder getting stuck on week 2.

May 6, 2026
Design·6 min

Site rotation that actually works: red, yellow, green

Most apps default to 'general body area' and call it rotation. Here's why a 3-state color-coded body map is the right model · and why sub-Q and IM should never share a history.

May 4, 2026
TRT·9 min

Reading your first TRT panel: what to look at and what to skip

A plain-language guide to total T, free T, SHBG, E2, hematocrit, lipids, and the rest of a standard TRT panel · with the values that actually move protocol decisions.

May 2, 2026
Design·5 min

Why Regimio is dark. And green. And mono.

The design tokens behind Regimio: #0A0A0A canvas, #00E676 accent, Inter Tight + JetBrains Mono. Where they came from, why they're locked, and how performance apps influenced the system.

Apr 30, 2026
Product·7 min

Local-first health app architecture in Expo: SQLite, Zustand, no backend

How we built Regimio with zero server infrastructure for the v0 release. SQLite + Drizzle + Zustand, opt-in iCloud sync planned for v1, no backend required.

Apr 28, 2026
Peptides·6 min

GLOW, Wolverine, KLOW: peptide protocol presets in 30 seconds

What's actually in the named peptide blends · GLOW, Wolverine, KLOW, BPC + TB-500 healing stack, GH Pulse · and how Regimio loads a 12-week cycle with a single tap.

Apr 26, 2026
Product·5 min

Why free Regimio keeps 90 days of history · and the 3-compound cap

How we landed on the free-tier limits: 3 compounds and 90 days of history. The reasoning, the alternatives we rejected, and why safety features never get paywalled.

Apr 24, 2026
Product·5 min

Notifications that actually fire: the #1 thing every other app gets wrong

Why local notifications beat push servers for health reminders, and how Regimio engineers reliability · 50 firings, 0 drops, every release.

Apr 22, 2026