tldr;

submodule

init submodule

---

git submodule init ---

add a submodule

git submodule add --depth=1 https://github.com/manasthakur/foo.git nvim/pack/plugins/start/foo
git commit -m "add submodules foo"

remove a submodule

git submodule deinit nvim/pack/plugins/start/foo
git rm -r nvim/pack/plugins/start/foo
rm -rf .git/modules/nvim/pack/plugins/start/foo

update a submodule

cd nvim/pack/plugins/start/foo
git pull origin master

update all modules

# first pull
git submodule update --depth=1 --init
# update
git submodule update --depth=1 --remote

neovim pugins list

plugin	use	source
nvim-tree	A File Explorer For Neovim Written In Lua	https://github.com/nvim-tree/nvim-tree.lua.git
gitsigns	Super fast git decorations implemented purely in lua/teal.	https://github.com/lewis6991/gitsigns.nvim
nvim-cmp	completion engine for neovim written in Lua	https://github.com/hrsh7th/nvim-cmp
cmp-nvim-lsp	nvim-cmp source for neovim’s built-in language server client	https://github.com/hrsh7th/cmp-nvim-lsp
nvim-lspconfig	Configs for the Nvim LSP client	https://github.com/neovim/nvim-lspconfig
vim-vsnip	VSCode(LSP)'s snippet feature in vim/nvim.	https://github.com/hrsh7th/vim-vsnip
cmp-vsnip	nvim-cmp source for vim-vsnip	https://github.com/hrsh7th/cmp-vsnip
cmp-buffer	nvim-cmp source for buffer words	https://github.com/hrsh7th/cmp-buffer
cmp-path	nvim-cmp source for path	https://github.com/hrsh7th/cmp-path
nvim-treesitter	TSInstallInfo, TSInstall, TSUpdate <language>	https://github.com/nvim-treesitter/nvim-treesitter
fzf	fzf	https://github.com/junegunn/fzf.git
fzf.vim	fzf for vim	https://github.com/junegunn/fzf.vim.git
vim-commentary	Comment stuff out	https://github.com/tpope/vim-commentary.git
venn	ascii diagram in vim	https://github.com/jbyuki/venn.nvim.git