fzf-lua

By default, fzf-lua makes LSP requests asynchronously within an FZF popup, which causes issues for null-ls. It works perfectly with the following config option:

require("fzf-lua").setup({
    lsp = {
        -- make lsp requests synchronous so they work with null-ls
        async_or_timeout = 3000,
    },
})

auto-save.nvim

See this comment.