fx use

re-use a previous build directory set up by fx set

usage: fx use DIR
   or: fx --dir DIR use
   or: fx use

Switches further `fx` commands to using a different build directory.
This only works if `fx --dir DIR set ...` succeeded previously
(and DIR has not been removed since).  The next `fx build` or other
such command will now refer to DIR.  The previous build directory is
left in place, so you can switch back again with `fx use` later.

fx use without arguments will list the available build directories, naming
the current active build directory (if any).

fx use with `ffx.ui.mode = tui` set will prompt you to choose a build director.
ffx.ui.mode can be set using `ffx config set ffx.ui.mode tui`
The UI mode for just fx use can be set with e.g.
`ffx config set ffx.ui.overrides.fx-use text`

use source code