If you're looking for a tool with a UI and in which you can also easily extend the functionality with your own, custom data connectors, you might also want take a look at Conduit which is another open-source tool we've developed to make building and running real-time data infrastructure more straightforward and less time consuming. Source: almost 2 years ago

Startup Stash • Tools and resources for entrepreneurs Integrations Directory • Directory of integrations for your no-code product. One Page Love • Find inspiration from one-page websites Do Things That Don’t Scale • Collection of unscalable startup hacks NoCodeList • Software for your projects Page Flows • User design flow inspiration Stackshare • Find software for your projects and business Side Hustle... Source: over 1 year ago

One of the things you will need to think about at this stage of the project lifecycle is the tools you will use to power your business. Startup Stash is a directory of tools (both free and paid-for) that you can utilize at the start of your business journey. In addition to that check our directory of tools, that we’ve checked and used during our startup journey. - Source: dev.to / about 2 years ago

"Startup Stash - A Curated Directory of Tools and Resources for Your Startup" https://startupstash.com. Source: almost 3 years ago

Also useful (but not a book): https://startupstash.com/. Source: about 3 years ago