arthema

Project lab · Bogotá

We build our own products, not campaigns for others.

Arthema is a lab: we state a hypothesis, build the smallest thing that tests it, launch it with a domain, payments and metrics from day one, and let the data decide whether it grows, pivots or gets archived.

See projectsLet's talk
9
projects on the table
1
in production
1
public betas
7
in exploration

A lab, not an agency

The difference isn't size. It's who takes the risk.

That's why we don't take briefs or quote development work. We do collaborate with teams that want to adopt, integrate or co-develop something that came out of the lab.

An agency
A lab
bills by the hour.
invests in products.
executes a client's brief.
states hypotheses and tests them.
delivers and leaves.
operates, measures and improves what it ships.
sells capacity.
shares what it learns.

Projects

What's on the table

Every project carries an honest status. Production means it is used and paid for today. Public means anyone can install it. Exploration means code exists, but a decision doesn't yet.

All projects →
In production2026

Publishing platform

Danny Viasus · plataforma editorial

Teaching novels about money, crypto and AI: free prologue and first chapter, sales on Amazon and a premium area per book.

  • Next.js
  • Supabase
  • Lemon Squeezy
  • Resend
Public · beta2026

Developer tool

Arthema API IDE

An API IDE that lives in the terminal: fast, lightweight, written in Rust and AI-assisted. An alternative to Postman for people who don't want to leave the keyboard.

  • Rust
  • TUI
  • Gemini
  • Homebrew
In exploration2026

Personal tool · macOS

Bitácora

A local-first screen recorder that transcribes meetings, extracts ideas into Obsidian and starts by itself from the calendar.

  • Go
  • macOS
  • Obsidian
  • Google Calendar
In exploration2026

Education · languages

Babel

Accelerated language acquisition from A2 to C1: adaptive testing, a dynamic curriculum, spaced repetition and audio-based training agents.

  • IRT
  • FSRS
  • AI agents
  • Audio
In exploration2026

Fintech · housing

Home

Financial certainty before commitment: real prequalification for buying a home in Latin America.

  • Next.js
  • Supabase
In exploration2026

SaaS · AI voice

Mirlo

Multilingual AI phone calls for businesses: knowledge isolated per customer, appointment booking and payment inside the same call.

  • RAG
  • Voice
  • Multi-tenant
In exploration2026

Payments · games

Payfun

On-chain micropayments for games and apps, with an SDK simple enough for an AI to integrate: Unity, Unreal, Godot, web and Roblox.

  • SDK
  • On-chain
  • Unity
  • Godot
In exploration2026

Infrastructure · agents

ArthemaOS

An agent orchestrator for organizations: control plane, execution plane and an operator portal.

  • AI agents
  • Control plane
  • Portal
In exploration2026

Tool for product teams

MicroUX

Audits a site's codebase for microinteraction and conversion opportunities, then applies the changes with snapshot and rollback. A Claude Code plugin.

  • Claude Code
  • Plugin
  • Skill

Method

Four steps, always the same

  1. 01

    Detect

    A real problem that already affects us or that we see up close. We look at market, distribution and why nobody has solved it well.

  2. 02

    Prototype

    Weeks, not months. The minimum that lets people actually use the product and shows what happens.

  3. 03

    Launch

    Domain, payments, email, analytics and SEO from day one. A project you can't use and pay for isn't launched.

  4. 04

    Measure and decide

    With data and on fixed dates: continue, pivot or archive. Archiving is a result too.

Principles

How we work

Who is behind

Danny Viasus, founder

Software developer and author. He writes teaching novels about money, crypto and artificial intelligence, and builds the tools to publish, sell and measure them.

Arthema is where those two callings meet: digital products of our own, built from Bogotá, in Spanish and English.

His books, at dannyviasus.com →Code on GitHub →

Collaborate

Building something related?

If you want to adopt or integrate a lab project, propose a collaboration or tell us what you're building, write to us. We reply within a few days.

Or write directly to support@arthema.co