Software that gets built, shipped, and operated.
NanySoft builds its own products and keeps them running — the same person who designs the data model is the one who answers when it breaks.
- A product in production, not a portfolio
- Export your data whenever you want
- AI access off unless you turn it on
Nanyfin in production · demonstration household, fictional data
The problem
Most software stops at deployment
Most of the work starts after the code is written.
- The system goes live and nobody owns it afterwards.
- Whoever wrote the code is not who answers when it breaks.
- Every change passes through three people before it becomes a decision.
The whole lifecycle
The work does not end at the merge
Writing the feature is the short part. What decides whether software is any good is what happens afterwards: how it ships, how it behaves under real use, and who answers when it breaks.
01 · Build
Architecture, database, backend, interface. Decisions made by whoever will have to maintain them.
02 · Ship
Deploys, migrations, domains, certificates. Repository to production without drama.
03 · Operate
Monitoring, backups, cost, and the Tuesday-night fixes. The system stays up.
04 · Improve
Real use shows what matters. The product changes from that, not from guesswork.
Our own product
A financial system for the whole household
Not another personal finance app. A shared ledger for the people who split the bills, built around clarity and control — and operated by us, in production, every day.
- FreeAfter 14 days of Plus
- No cardTo get started
- PrivateBeta for households
01 · Trace
Every number traces back to a record
The summary is not a black box: each amount carries an account, a category, a payment rail and a date — and all of it filters.
02 · Plan
What is coming, before it lands
Card bills, future instalments and budgets shown as decisions — not as a pretty chart.
03 · Control
Nothing lands without your review
Imports go through a check before they become records. AI access starts off, and only exists if you create it.
- Cashflow, upcoming bills, and review items in one calm dashboard
- One ledger for a couple or household, without losing who added what
- CSV import and export, with a review step before anything is committed
- AI access off by default, and revocable whenever you want
- Your data leaves whole whenever you want — open export, no lock-in
Running in production
- Product
- Nanyfin
- Stage
- Private beta
- Application
- Django · React
- Database
- PostgreSQL
- Infrastructure
- AWS · Railway
- Support
- Direct from whoever wrote it
- Operated by
- NanySoft, since 2025
Services
We also build for clients
The same product and engineering discipline used on our own products, applied to a small number of client projects at a time. The differentiator is not knowing React and Django — it is knowing what happens after the code is written.
- 01
Custom development
Web applications built from scratch, from the database to the interface.
- 02
Integrations and automation
Connecting systems that do not talk to each other, and removing repeated manual work.
- 03
Hosting and operation
Getting it live and keeping it live: infrastructure, deploys, backups, monitoring.
- 04
Technical consulting
Architecture review and a second opinion before a large investment.
The stack actually in production
Only what runs today. Not a résumé.
- Product
- Nanyfin · Client projects
- Application
- Django · React · Next.js
- Data
- PostgreSQL
- Infrastructure
- AWS · Railway
Small by design, focused by choice
NanySoft does software engineering and product development. We do not do graphic design, marketing campaigns, or native mobile apps — and we turn down projects without a defined scope. If it is not something we could operate once it is built, we would rather point you elsewhere.
About
Small by choice, not by accident
NanySoft is an independent software studio. It builds and operates its own products, and alongside that takes on a small number of client projects.
Small is an architectural decision, not a limitation: fewer layers between the person deciding and the person writing the code, and nobody to hand the problem to when something breaks at 2am.
- 2025Year founded
- 5+ yearsExperience
- RemoteMode of operation
I design the data model, write the backend and the interface, set up the infrastructure, run the deploy, and answer when it breaks. There is no layer between the decision and the implementation, and nobody to hand the problem to. I have been writing software for over five years.
Questions
What people ask before signing
01
Who will actually work on my project?
I will. NanySoft is one person: I design the data model, write the backend and the interface, set up the infrastructure, and answer when it breaks. There is no account manager in between and no handoff to another team.
02
Do you only build your own products, or client work too?
Both. Nanyfin is our product and it is in production. Alongside it we take on a small number of client projects at a time — small enough that each one gets direct attention.
03
What kind of project do you turn down?
Graphic design, marketing campaigns, and native mobile apps. We also turn down projects with no defined scope. If it is not something we could operate once it is built, we would rather point you to someone else.
04
What do you build with?
Django and React in the application, PostgreSQL for data, AWS and Railway for infrastructure. That is the stack running in production today, not a list off a CV.
05
What happens after the system goes live?
We stay responsible for it, if you want us to: hosting, deploys, backups, and monitoring are part of what we offer. Software that stops at deploy is exactly the problem NanySoft exists to solve.
06
How long has NanySoft been around?
The company was registered in 2025. The founder has been writing software professionally for more than five years — the experience predates the company.
07
Is Nanyfin free?
You start with 14 days of Plus, no card. After that the account continues on the free plan.
08
How do I start?
An email to info@nanysoft.com.br telling us what you are building, what already exists, and where it got stuck. I answer myself, within 48 hours — there is no triage in between.
Contact
Let us put it into production
Tell me what you are building, what already exists, and where it is stuck. I answer myself — there is no intake queue in between.