> For the complete documentation index, see [llms.txt](https://www.umwelten.xyz/dwelling/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.umwelten.xyz/dwelling/things/digital.md).
# digital
## driver
A maintenance / companion app (accessed through a screen) to update the physical device’s (Bobtail’s) settings and modes.
## modes
Developers may periodically add to the available modes which Bobtail may be set to.
### language
Tailored tactile text. A font personalised using bioelectric signals so it works like an easy to learn high throughput phoneme based braille. May absorb tactile books (just as one does audio books). Unproven, speculative.
### music, audio
Paired with speakers controlled by a tactile jockey (standing alongside an audio jockey). May pick up and render ambient sounds or by placed in-line with speakers to augment an auditory experience. Users may make their own audio-to-tactile transformations by uploading their own codecs (a trivial one may be to play low frequencies). Unproven, speculative.
### affective
Two humans or non-humans wear Bobtail and the sensor readings of one are played on the other bringing them in harmony. Unproven, speculative. May also send predefined tactile emojis.
### situational
May provide non-music clues when watching movies (e.g. doors shutting, texture of the road), playing video games (e.g. engines knocking, the breeze against one's neck), using a map (e.g. nudging someone so they take a turn) or other apps (similar to how an phone application may make use of audio cues).
### speech
May address stuttering / stammering, speech tremors and act in lieu of an electrolarynx. Unproven, speculative.
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