# audio/available? True when the host was compiled with SDL3 audio (`retro`, `hydra`); always false on the ANSI host (`retra`), where the namespace compiles without libSDL3 and every other `audio/*` call returns a clean `%Err`. ## Syntax

[audio/available?]

## Examples

[audio/available?]   # → true on retro/hydra, false on retra

if [audio/available?] {
    [audio/beep 880 0.05]
}

## Returns bool — a compile-time constant per host. The standalone `deft` CLI does not ship the TUI plugin registry, so `audio/*` symbols are undefined there; call these verbs from a TUI app. ## See Also `audio/beep`, `tui/backend`, `tui/gl?`