Also, as mentioned above, check the output specs especially with dongles. I suspect most will not drive full-sized gear correctly.
This
https://magnahifi.com/audio-gd-r1-nos-discrete-balanced-r2r-ladder-fpga-dac/ is almost twice what
@Lindholdt wanted to spend, but it comes hugely recommended and if you ever outgrow it in your main system it would serve happily in a secondary system.
The gear, company, and shop are excellent, excellent, and excellent
I have 5 pieces of Audio-gd gear and numerous transactions with Magna.
I should have mentioned it earlier, I believe it's cheaper than any Soekris, the build is objectively much better, and I think most R2R fans would prefer the sound quality of the Audio-gd.