Hi. This is primarily 2 overall questions:

1)

Looking through your readme and :help rocks-nvim I do not see any direct directions for making the equivalent of a build post install/update function.
I do see a user event defined as so:

vim.api.nvim_create_autocmd("User", {
       pattern = "RocksInstallPost",
       callback = function(ev)
       ---@type rocks.user-events.data.RocksInstallPost
      local data = ev.data
      -- ...
   end,
})

However, the :help is not clear as to what is inside ev.data, nor whatever-else it may contain.
Looking at your readme, there is a reference to rocks-git.nvim, which when going to it's page clearly shows the simple setup needed for build. But, there is no direct mention of this in the rocks.nvim readme.
I think this would be helpful to mention in your rocks.nvim readme.

What is inside ev.data? And how would I use it? Nvim 0.12 nightly gives a decent enough example of how to extract the name and type of action from their PackChanged events ev.data.

Thinking about this further, I don't actually understand how plugins packaged using luarocks/lux-cli handle this problem, leading to my second question.

2)

How do plugins packaged using luarocks/lux-cli handle this? When you download their package, do these things come prebuilt, or does the package manager build them on system?

Speaking specifically to lux-cli, I think I remember remember seeing it has support for building your Rust dependencies along with mlua. However, what about plugins that require build steps for languages other than C/Rust? Would those plugins only be available as git plugins, or would rocks.nvim still be able to handle them as Lua packages? This is something I am very much wondering about right now.

Thank you for this project, lux-cli, and all the work you guys are doing for improving the Neovim ecosystem. I understand that this specific project is undergoing a major rewrite to use lux-cli rather than luarocks. As such, if the answers provided are for how the rewrite plans to handle these things rather than how they currently are, I would still be more than happy for knowing.