Solo ULDE amp

Currently I need to use a headphone extension cable, as I won't be dragging a heavy armchair half way across the room from my speaker listening position to be next to my gear.  (Nor do I fancy the idea of Bluetooth-ing, as even current generation Bluetooth looses fidelity.)

Mostly I listen to ripped CDs, playlists and Qobuz, with the occasional vinyl binge.  CD albums (as rips) usually get played beginning-to-end, as do LPs.  Playlists are often multi-artist/multi-album - so remote volume control is kind of a necessity with them.

It's a great shame that more headphone amps don't offer remote control for (at least) volume, and that there seems to be a general assumption in the market, that headphone listeners are within arm's reach of their amp.  My internet searches have revealed only a couple of straight amps with this "feature", and prices are steep.  I'm distinguishing these from a significant number with remote control that are built around a DAC.  What Hi-Fi magazine did a review entitled "Best headphone amplifiers 2021...", and it's telling that of the thirteen devices they reviewed, only one didn't have a built-in DAC.  And almost all were limited to digital-only inputs.

My Oppo already provides a respectable DAC, so if I did add a headphone amp/DAC I'd also want to have the option of running its DAC through my speakers (and so reduce the Oppo's up-time when not watching a DVD/Blu-ray).  The issue then for me is that the more affordable ones don't provide a Line Out.  It seems that I would need it to be a head amp/DAC/pre-amp...when all I want is a straight headphone amp with remote control.