neovim v0.9.5 and astonvim install

[hholst80]

How do I install this with AstoNvim?

nvim ~/.config/nvim/lua/user/plugins.lua

return {
  { "terrastruct/d2-vim", lazy = "false" },
}

but ft=d2 is not available when I open up a file with a .d2 suffix.

[ngoettin]

I believe, I have the same problem:

Error detected while processing BufNewFile Autocommands for "*.d2"..FileType Autocommands for "*"..Syntax Autocommands for "d2"..function d2#syntax_post:                                                                                                                                                                    
line    1:                                                                                                                                                                                                                                                                                                                   
E121: Undefined variable: b:included_syntaxes                                                                                                                                                                                                                                                                                
E116: Invalid arguments for function index

on an empty .d2 file

[erzz]

Same as @ngoettin here - on any .d2 file. Mine is a simple lazy setup via kickstarter where i am just loading as a plugin:

Its completely none functional... no highlighting or anything

EDIT: five mins later I found a solution

local d2 = {
    'terrastruct/d2-vim',
    ft = 'd2',
}
return { d2 }

[jcarpenter12]

Thanks @erzz for your solution that worked for me