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Custom software, shipped in weeks. Not quarters.

We help SMB founders and CTOs ship the apps their business actually needs, without spinning up an internal team. AI-augmented process. Senior engineers. Fixed sprints.

Teams David has shipped for

  • The Social Cat
  • Oceaneering
  • Vodafone
  • Deloitte
  • Amdocs
  • Avo HQ

What we do

  • 01

    Product MVP sprints

    You have an idea and a deadline. We ship a production-ready MVP in 4-8 weeks. Fixed scope, fixed price, senior team only.

    See details
  • 02

    AI integration for existing apps

    Your app exists but doesn't use AI yet. We add chat, summarization, search, document understanding, whatever moves the needle, in 2-6 weeks.

    See details
  • 03

    Technical due diligence

    You're investing or being invested in. We audit the codebase, flag the risks, and hand you a report your lawyer can read. Typically 1 week.

    See details

What clients say

  • Shipped our MVP in 5 weeks. The team was technical, senior, and frankly better at product than we expected.
    Placeholder Founder · CEO, Acme Co.
  • They audited our codebase and gave us the clearest, most useful report we got from any consultancy. Saved us from a bad acquisition.
    Placeholder CTO · CTO, Example Labs

How we work

  • 01

    30-min call

    We talk through what you need and whether we are a fit.

  • 02

    Scoping document

    Shared, signed, with a timeline and a price.

  • 03

    Sprint kickoff

    We ship every week and demo every Friday.

  • 04

    Handoff

    Docs, runbook, and optional ongoing support.

David Marin, founder of Basetool

Founder

David Marin

Founder of Basetool (AI-augmented custom-software studio) and Sixthly (stealth productivity agent). Eight years shipping product at YC-backed consumer and developer-tools startups: Product Engineer at The Social Cat, Software Engineer at YC W21 Waydev, co-founder of the Avo Rails admin framework. BSc Computer Science, University of Twente — Best Paper Award, IEEE SMC 2020. Four languages, Ironman finisher.

Tell us what you're building.

30 minutes on the calendar. No pitch. We listen, we ask questions, we tell you whether we can help.