https://youtu.be/ToK-5VwxhP4 (one minute video)
Reqman is a command-line based tool (available on all platforms), which let you test your rest apis, by describing your requests/tests in simple yaml files, with any text editors.
Writing tests is really easy, and suitable for non-tech people
DEMO: an online yaml/reqman editor/tester
BONUS: An online tool to convert your swagger/openapi3 definitions, or a postman collection, to reqman's yaml tests files.
Reqman helps me a lot, in my everyday work, to automate my non-regressions tests (TNR) on 100apis (with more than 2000 tests). And I'm pretty sure that It could help someone else.