Sorry the picture is upside down! I can never get photos to post the right way up!!
I think that it’s an oddity of the software as it seems to happen quite a lot. The full photo is the right way up on my iPad.
An excellent installation in terms of being tucked out of the way but given how close to the pintle it is, does it struggle to move the tiller against weather helm?
Back in the previous century I used to sail solo out of Dover in a 20’ Norfolk Gypsy. The Autohelm 1000 was a very useful piece of kit which communicated with the wind indicator and fluxgate compass, all of which came with the boat when I bought it. When I needed to raise or lower the main, I would put the Yanmar on gently ahead and program the Autohelm to keep the boat head to wind. It was also useful for holding a course, either magnetic (usually with the engine on) or relative to the wind when sailing but I was careful about battery drain. Mine was secured to the underneath of the tiller, quite a long way forward.
BC23’s with a mizzen seem to be a rarity but if Chris’s has one, then weathercocking into the wind can be achieved with a tiller tamer just as well as with an Autohelm, and without using the engine. If you get the sail balance right a well-elasticated tamer can also help keep the boat more or less on the same course relative to the wind, at least on some upwind angles. Here's a thread on tiller tamers and self steering from 2010-12, when BC23's were new on the scene and the world revolved around BR's
https://www.swallowyachtsassociation.org/smf/index.php/topic,317.0.html. And a library article from the same era
https://www.swallowyachtsassociation.org/?page_id=577.