Zero-to-one builds
Turn a sharp idea into a real product. Architecture, build, and launch, owned end-to-end on a stack chosen for the long run.
Engineering consulting
Heart & Fire is a small engineering studio that helps founders and teams take products from idea to shipped, every decision made with care, every line of code earning its place.
A focused set of engagements, sized to match where you are, from a single architectural review to a full zero-to-one build.
Turn a sharp idea into a real product. Architecture, build, and launch, owned end-to-end on a stack chosen for the long run.
Embed alongside your team to ship features, harden infrastructure, and turn a working prototype into a product people trust.
Practical AI features, retrieval, extraction, voice, agents, built on the model providers and tooling that actually fit your product.
Architecture reviews, hiring help, fractional CTO, and an honest second pair of eyes. Short engagements that save long, expensive detours.
Every project is different, but the shape is the same: understand the problem deeply, build the smallest honest thing, and refine from there.
A short, focused conversation about what you're building, what's working, and what isn't. We leave with a shared understanding of the problem and a candid recommendation for the path forward.
Set the technical bedrock. Stack decisions, data model, auth, infrastructure, the parts that quietly determine whether the product can grow into itself a year from now.
Ship in tight loops. Every week the product gets a little sharper, the feedback gets a little richer, and the next decision gets a little easier.
Polish the public surfaces, ship to the store or the web, and leave behind documentation a future engineer will thank us for. The goal is never just to launch, it's to leave something maintainable.
A short list of convictions that shape every decision, from the stack we choose to the way we write a commit message.
The best technical decisions start with an honest understanding of the people the product is for. Software is downstream of clarity.
A tight loop beats a grand plan. Weekly shipping forces honesty and creates the feedback that good products are built from.
We pick the stack that will still be a good idea three years from now. Novelty is reserved for the parts of the product that earn it.
Every engagement ends with code your team can read, infrastructure your team can run, and decisions your team can defend.