[solardev]

Define your requirements as best as you can, based on examples you've seen in other websites/apps. Ask for the source code every so often.

Ask ChatGPT how it would go about making something with similar requirements, step by step, and then feed it back the source code you get from the dev and ask it if it's a reasonable way to approach that problem. It's probably going to do better than hiring another rando dev who you don't already know to be trustworthy. Tell it you're not technical and to explain what the code should do in a best practice situation and compare it with the source code you actually provided, explaining differences in layman's terms.