Hassio not suitable for offline environments (no local control, privacy second)?

Since I switched to hassio on top of raspbian I solved at least the ntp thing and I can use the DS3231 like it is expected to.

But I have no luck getting picotts (also named pico2wave) working. For various reasons I don’t like to tell big brother what to tell me

The error message is the following:

‘pico2wave’ was not found

01:23 PM components/picotts/tts.py (ERROR)

How would it be possible for ha to reach my picotts in raspbian from it’s docker :face_with_monocle: