Фреймворк PMF — 5 шагов к Product/Market Fit 2021
https://medium.com/radikal-studio/pmf-framework-5-steps-to-product-market-fit-2021-4c95a0c964ad
https://medium.com/radikal-studio/pmf-framework-5-steps-to-product-market-fit-2021-4c95a0c964ad