fortitude60 VS nixconfig

It looks like the keyboard is open source. There is a github link in the page you referenced. In particular have a look at https://github.com/Pekaso/fortitude60/blob/master/Documents/buildguide_en.md for part list and build instructions.

Source: https://github.com/Pekaso/fortitude60/blob/master/Documents/buildguide_en_v1.1.md

I'm looking to print a fortitude60 pcb and jlpcb let's me choose between FR-4 and Aluminum.

Is there a manufacturing guide for open source keyboards in the US? I was using the term "build" in my searches until sitting down to write this post, but am realizing now, it's not the build guide I need, the projects take care of that, it's how and where to manufacture the custom parts that I don't know the answer to. I include this explanation and use of "build" in hopes that someone making the same mistake will find the right answer.

I think although, it might be hard for a complete newbie to start with, once you know to touch type reasonably well, it is really worth it to give this layout system a go. Personally, I am using a fortitude60, but you can try Miryoku with a wide range of keyboard. I think the benefits really shine when used with a ortho, 3key thumb cluster board such as the Corne.

I have been looking around the ergo keyboard scene for a while and build myself the extremely satisfying fortitude60. I fell in love with it, tweaked a bit the default keymap and learned to touch type.

Shift was annoying to me, so I moved it to a thumb key. I also have cut copy paste on a layer too since I tend to rush when pressing it. Layers need to be instant for me too. Callum feels like too much work, and this is a happy medium. Here's a pic of my layout https://github.com/dlip/nixconfig/blob/master/keymaps/README.md

Here's my layout, L1, space, shift, L2. I found having shift as a homerow mod slowed me down, so it's on the right thumb https://github.com/dlip/nixconfig/blob/master/keymaps/sweep.png

I found the same as you, and initially tried Callum mods. But I found having to layer to one shot mods for the letter combos was frustrating. I ended up identifying that I was OK with ctrl/alt/super being home row mods, but shift and layers needed to be dedicated thumb keys. Here is my layout https://github.com/dlip/nixconfig/blob/master/keymaps/zmk/config/cradio.keymap

I often need to switch to my laptop so I created a layout that only needs 1 thumb key. I use this on my corne also https://github.com/dlip/nixconfig/blob/master/keymaps/kmonad/spaceonly7.kbd