My own programming language called: dia (stands for do it all).
Aims to be a full batteries included language + standard libraries, so that building both with and without AI assistance is effortless and can reuse the building blocks without having to reimplement things. Wrote more about the why here: https://dia-lang.org/vision
Most notable such case is the UI library, where you can take out just text rendering, or event/input system, or the signals-based reactive library, and reuse them in other contexts.
some other notable features: - vey inspired by rust in syntax and type features - batteries included library containing a full cross-platform gui library including a prosemirror-like wydiwyg text editor - rust like memory safety, uses arenas for cyclic objects so that the language doesn't need lifetime parameters like rust, easier to reason about for generic code - transpiles down to c, then compiles to anywhere C can run - has its own native JSX-like syntax called DSX, any functions with the right signature can be written in DSX notation, not just UI components - incrementally compiled, has HMR (hot module reload) - effortless C interop (dia compiler ships with clang). no need to write manual wrappers for libraries (but sometimes need to write a short manifest file to map dia's memory safety with most c libraries' manual management)
More information here: https://dia-lang.org/ (Not open-sourced yet, waiting until the base features are stable)