I feel like building a modular laptop is much easier than a modular phone. You don't have to deal with the hardware enumeration problems on x86 as you do with ARM
Already many laptops you can easily swap parts like the HDD/SSD, Battery and RAM, and even the GPU (to an extent) if its using a standard like MXM. Building a laptop with more modular parts using existing standards (looks like from the images the modular parts are using USB C Thunderbolt?) is much more doable than a modular phone.
It wasn't that long ago when manufacturers like Dell and Lenovo had models where you could basically replace almost everything. I guess still models like the T14 allows you to replace RAM, SSD, Wi-Fi card, keyboard, touchpad and even the screen.
For the older models, even screen replacements are quite common in the ThinkPad community...
Good luck for this project though, we really need more companies like this!
Already many laptops you can easily swap parts like the HDD/SSD, Battery and RAM, and even the GPU (to an extent) if its using a standard like MXM. Building a laptop with more modular parts using existing standards (looks like from the images the modular parts are using USB C Thunderbolt?) is much more doable than a modular phone.