Software your team can still run in its fifth year.
Scoped in writing, built in phases, handed over in your own accounts.
Scope in writing
Agreed before anything is built.
Architecture reviewed
The shape of the system is read and signed off, not assumed.
Built in phases
Working software every two weeks.
Tests and review
A failing check goes back to the branch.
Yours at handover
Your repositoryYour cloud accountsYour documentation
Every commit, the infrastructure as code, and the docs written to onboard sit in your own accounts.
- Fixed price per phase
- You own the code
- 2–4 week average launch
What changes
What changes once it is built.
Four of these come up in almost every scoping call.
- A spreadsheet runs the process.
- Software runs it, and records each change.
- One person can deploy.
- Your team deploys, from a pipeline it owns.
- Nobody knows what the last build does.
- The architecture is written down and reviewed.
- Changes break things quietly.
- A failing test stops the merge.
What we build here
Six things live under software engineering.
They share one engineering standard and differ only in what they run on.
Web applications
A typed API sits behind the front end, so a change to the data model breaks the build instead of breaking production.
Scope a web application →Mobile apps
One React Native codebase reaches both stores, dropping to Swift or Kotlin where the app leans hard on the device.
Scope an app for both stores →SaaS platforms
Each tenant's rows stay isolated in Postgres, billing reconciles against Stripe webhooks, and metered usage matches the invoice.
Plan a multi-tenant build →Custom software
An internal tool is modelled on how your team already works, imports the spreadsheet the process runs on today, and gives each role only what it needs.
Replace the spreadsheet →API development
The OpenAPI spec is generated from the code, contract tests run in CI, and writes are idempotent so a retry cannot charge twice.
Design an API others can build on →Backend engineering
Migrations go through review, background work runs on a durable queue, and alerts fire against error budgets rather than CPU graphs.
Harden what you already run →
How a change reaches production
Nothing merges until it has passed.
The pipeline you inherit at handover is the one we used to build it.
One change
A single change, on its way to production.
Types compile
Tests pass
A person reviews
A person reads the diff before it goes any further.
Migration applies
Deploy
The change reaches production.
How a build runs
Four phases, each priced before it starts.
Scope
We define the surface area in writing: the users, the jobs, the data, and what is explicitly out of scope. Nothing here is a surprise.
Architecture
The data model, the service boundaries, and the deployment topology, reviewed before a line of product code is written.
Build
Phased delivery. You see the product take shape every two weeks.
Handover
Code in your repository, infrastructure in your accounts, docs that your team can onboard against.
Proof
What we have already shipped.
Common questions
Price, timeline, ownership: answered.
- Do you work in a specific tech stack?
- Stack is chosen per project, with a bias toward TypeScript, Next.js, Postgres, and AWS or Vercel. Where you already run Django, Laravel, or .NET, Stallwart works inside it rather than rewriting. The deciding question is whether you can hire someone to maintain the choice after we leave.
- Can you work with our existing engineers?
- Yes, and Stallwart prefers it. Your engineers join the architecture reviews, review pull requests, and merge their own work during the build. Two developers in the loop turn handover from an event into a formality. Teams with no in-house engineers get documentation and a recorded walkthrough instead.
- What does a custom software build cost, and what does fixed price mean?
- Price is fixed per phase, quoted after a 30-minute scoping call and approved before that phase starts. Screen count, integration count, and whether billing and multi-tenancy are in scope set the figure. Scope changes get rescoped with you first. Cloud hosting and third-party services are billed to you by the vendor.
- How long does a custom build take?
- Timelines follow surface area. An internal tool with four screens and one integration lands faster than a multi-tenant SaaS with billing and an admin console. Stallwart ships working software at the end of every phase, usually every two weeks, so progress stays visible. The scoping call fixes phase dates.
- Who owns the code and the IP?
- You own the code and the IP. Work lands in your GitHub or GitLab organisation from the first commit, infrastructure runs in your cloud accounts, and the CI secrets are yours. Stallwart signs the assignment as part of the engagement. No licence fee and no runtime dependency on us remains.
- How do we avoid inheriting code nobody can maintain?
- Handover quality is the fair objection to any outsourced build. Stallwart answers it with architecture decision records, a README that boots the project in one command, and migrations under version control. Tests cover the paths carrying money or authentication. A developer who never met us should onboard from the repository alone.
- Can you work with our legacy system?
- Stallwart works with what exists. Common starting points are a Laravel or WordPress monolith, a Salesforce instance, an Excel-driven process, or a Postgres database nobody has migrated in years. The usual approach wraps the old system behind an API and moves functionality across in slices.
Bring the system you cannot afford to lose.
One 30-minute call. You leave with an architecture, a fixed price per phase, and a written plan for the first build.
Book a call