Trying to attain perfection is good advice in a professional environment.

OTOH for side-projects, especially for people who have trouble finishing things without external motivation, it can be more useful to just get something done. Without the get-it-done mentality it's possible to obsess over the architecture, libraries, tech stack, deployment, test automation ad infinitum until you've lost enthusiasm for the project. It's great that you learned a lot of new tech but also slightly sad that the world will never see the idea you were so excited about 3 weeks ago.