This plugin is ddu.vim kind to execute external commands.
" Set default kind action.
call ddu#custom#patch_global({
\ 'kindParams': {
\ 'extcmd': {
\ 'runner': 'terminal',
\ },
\ },
\ 'kindOptions': {
\ 'extcmd': {
\ 'defaultAction': 'run',
\ },
\ },
\})