resin VS kitten

I've built a search engine. It has its own query language, data structures and binary file formats, it's MIT licensed and it has around 60 forks. Nobody uses it though, even though it has been around for some years but it was just until recently that I managed to solve the very last of the most crucial of bugs, so I don't find that surprising at all.

It works well now, though, for a Wikipedia sized text based corpus, even though it's still in beta and contains code that can still be optimized. However, before I want to go any further with the project, I'd like to see if I can sell it, the copyright to my code, that is. Because maybe I want to be in the business of creating smart code, then sell it, then move on to the next thing? And maybe some company would like to have a search engine in their software portfolio? Suppose we meet, have a drink, see what happens.

Do I have the rights to sell it, though?

I'm the author of 99.999% of the commits.

https://github.com/kreeben/resin

While not quite a Forth, Kitten is a stack language:

https://kittenlang.org/

Since you're making a statically-typed concatenative language, I'll point you to a joy reference, kitten, notes to motivate type checking stack languages, and a paper that formalizes type checking for stack languages. Since this looks like a relatively high-level stack language (given the presence of ADTs), you may find that you want to add quotes to your language, specifically opaque quotes since your language is typed. In that case, you'll realize that you'll need a better way to formulate polymorphism over stacks, and the paper on type checking will provide that to you.

Well, there is Kitten, although it hasn't seen an update in two years and was moving quite slowly before that too.

https://kittenlang.org/

Author ended up doing a lot of work on Kitten https://github.com/evincarofautumn/kitten

Kitten lang

You may like https://kittenlang.org/