You can see this with languages like Rust and Go—they're some of the first low-level programming languages with actually good tooling, and, as a result, they're becoming very popular. I can pull down some code, run `cargo build`, and not have to worry about the right libraries being installed on my system and whether I've generated a Makefile. Packages are easily searchable, hosted on popular platforms like GitHub, and I can file bugs and ask questions without having to join an obscure mailing list or deal with an unfriendly community.
If you want your language/library/framework/layer in the stack to become popular, make the tooling good and make it easy for folks to get their questions answered. Everything else will follow.