What are solo founders actually building?
71 ideas keep coming up in what the builders wrote, in 12 areas. 652 of their 1,284 projects fit one of them; each idea lists its projects and the words that put them there.
Agents, context & control
- Answers and findings with sources you can inspectA useful answer becomes easier to assess when the reader can follow it back to the underlying material.10 projects
- Constrain and inspect agent actionsPeople need explicit limits or inspectable records around what an agent does.14 projects
- Prepare work for human reviewA human review step becomes part of the product workflow.21 projects
- Keep work on hardware you controlSome builders make local processing, local storage or self-hosting a defining part of the product.41 projects
- Give agents a working interface to existing systemsAPIs and MCP make infrastructure, data and actions callable.22 projects
- Turn conversations into business operationsMessaging and voice interfaces connect to operational work.11 projects
- Turn company context into reusable instructionsKnowledge and corrected working methods become material for later AI tasks.4 projects
The whole landscape
Every project on one board, placed by the waves it belongs to, or the September 2026 map as an image to keep.
How we found these waves
- The starting point
- Founder networking threads, quote posts and related posts, followed by project websites. The September 18 research reviewed 854 records: 851 unique projects and three duplicates.
- What we could learn
- 485 projects had enough evidence for the offering, audience and approach; 177 had a meaningful description with gaps; 189 lacked enough information. 440 projects fit the 70 recurring ideas in this edition.
- What a wave means
- A shared task, audience need or approach, checked against each project’s sources. It describes a pattern in this catalogue, not measured market growth. Some projects fit several waves; others have a distinct idea or need more information.
- Follow the evidence
- Open a wave for its criteria and source excerpts, then a project for the original sources and its builders. Counts above reflect the current published catalogue; the downloadable map records the research edition.