Redocly is an open source tool written in Typescript that assists in managing your APIs effectively. What can it do? https://www.i-programmer.info/news/90-tools/16628-redocly-cli-the-super-tool-for-api-management.html
I was pleasantly surprised when I noticed that a Perl course has been published on FreeCodeCamp. Amongst the myriad of Javascript and Python courses, there it is, a lone star. https://www.i-programmer.info/news/222-perl/16624-learn-perl-with-freecodecamp.html