I write software blood cancer patients depend on. It has to be right.

Software engineer at HealthTree Foundation. HIPAA-compliant systems by day, community projects and AI agent tooling on the side.

See the work
Sam Ahlstrom

About

I build HIPAA-compliant software at HealthTree Foundation, a nonprofit for the blood cancer community. Outside work I build solo, end to end, for the city I live in: ticketing for a musical, a CAR-T patient education site, and other tools people actually use. I also build the tools that help me build: an AI agent fleet commander, and a discipline layer that keeps AI-written code small, tested, and checked by an agent that didn't write it.

Work

Three of these I built alone, start to finish. HealthTree, where I work, is the one that's a team effort.

The IsoMed Care homepage, showing a caregiver at a patient's bedside after a CAR-T infusion Healthcare

IsoMed Care

Trained in-person caregivers and 24/7 clinical oversight for patients recovering from CAR-T infusions, covering the gap between hospital discharge and full recovery. Caregivers use a tablet workflow for vitals and assessments, with one-tap escalation and a live operations dashboard.

My role: software engineer, sole developer. I built this end to end.

isomedcare.com ↗
The AskAboutCART homepage, a patient and doctor reviewing CAR T cell therapy on a tablet Patient education

AskAboutCART

A patient-education resource on CAR T cell therapy, with content contributed by patient advocacy groups including the International Myeloma Foundation and HealthTree Foundation. An FAQ engine covers treatment, cost and insurance, and eligibility, plus a myths-vs-facts comparison.

My role: software engineer. I designed and built this myself, front to back.

askaboutcart.org ↗
Promotional poster for The King of New York at the Eccles Theater, November 6 Community

The King of New York

Ticketing and marketing site for an original musical about five African American slaves who found faith and hope in 1800s America, premiering November 6, 2026, at the Eccles Theater in Salt Lake City. My community project, not healthcare.

My role: software engineer. Solo project — I wrote every part of it.

kingofnewyorkmusical.com ↗

Tooling

I built these to do the work above. This is how I ship, not a side project.

Samson

A command-line tool I built that runs a small fleet of AI coding agents from one terminal session, no frameworks, stdlib Python. Each worker gets its own named, addressable tmux pane and tracks its task with beads, and a shared code-intelligence endpoint means every agent searches one index instead of spinning up its own. One commander session breaks a task apart and dispatches the workers, instead of me running one agent at a time by hand.

forge-toolkit

A set of rules I wrote so AI coding agents can't cut corners. Every feature starts with a failing test before implementation code, every diff is reviewed by a separate agent that didn't write it, and every visible change has to be proven with a screenshot before it ships. It's the discipline layer that keeps agent-written code small and checked instead of bloated and unverified.

Blog

Contact

I'm open to talking about healthcare software, AI agent tooling, or the next community project. Email works best.