Because nnn.vim uses a temp selection file with random_name and nnn's plugins use selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection} to get which files are selected, so nnn.vim should pass NNN_SEL env to nnn command.
Make select action of nnn's plugin(like chksum, diffs etc.) also works in nnn.vim.
Because nnn.vim uses a temp selection file with random_name and nnn's plugins use
selection=${NNN_SEL:-${XDG_CONFIG_HOME:-$HOME/.config}/nnn/.selection}to get which files are selected, so nnn.vim should pass NNN_SEL env to nnn command.Make select action of nnn's plugin(like chksum, diffs etc.) also works in nnn.vim.