https://medium.com/javascript-in-plain-english/7-free-apis-that-nobody-is-talking-about-cf974e15917
Some fun ones here
Open source, cross platform music platform
https://yukaichou.com/gamification-study/game-mechanics-research-candy-crush-addicting/
Case study of applying the eight principles of gamification.
Probably one of the simplest subscription models, often overlooked.
https://medium.com/faun/how-to-install-and-setup-elk-on-ubuntu-20-with-login-page-b9877a7ca9f6
I can attest to the usefulness of this from having tried to do it without this guide.
https://www.kj7nzl.net/blog/ham-radio-needs-to-embrace-the-hacker-community-now-more-than-ever/
I've long thought that the Ham Radio community should be more like the hacker/opensource folks.
HiTech tinker toys with aluminum rails and connectors, and a online CAD software. They ship you parts, you build it.
https://journal.lunar.sh/2020/11/03/transistor-design-for-newbies.html
Reminds me of a college course I took in this.
interesting speech->text->edit->speech podcast editing SaaS
https://nocomplexity.com/documents/arplaybook/index.html
resources for software architecture
https://www.shopify.co.za/blog/how-to-start-a-subscription-business
Advice on subscription ecommerce
https://macwright.com/2020/10/28/if-not-spas.html
Various shades in between static pages and native SPAs