Shipmunks is a free resource site for solo founders building with AI tools. It has step-by-step guides and blog posts on SEO, backend and stack, AI agents, growth, and money. Each post carries something you can check: a test, real data, or a template. Free tools include MRR, NRR, and CAC payback calculators that state their formulas. Free downloads include CSV worksheets for MRR, NRR, CAC payback, and churn, a blank CLAUDE.md template, and three Claude Code subagent files.
What you will find: guides and blog posts on SEO, backend and stack choices, AI agents, growth, and money for small teams. Each one shows its working, so you can see the test that was run, the real data behind a claim, or the template you can copy.
Free calculators for MRR, NRR, and CAC payback each state their formula on the page, so you can check the math and adapt it to your own numbers. Free downloads include CSV worksheets for MRR, NRR, CAC payback, and churn, a blank CLAUDE.md template to start a project with Claude Code, and three Claude Code subagent files you can drop into your own setup.
Who it is for: Shipmunks is written for solo founders and tiny teams who build and ship with AI tools and want practical answers without a paywall or a signup. Everything on the site is free to read, use, and download.
