Why carry both a phone and a laptop if one device could do both? A Redditor has built a DIY “laptop” shell that is fully 3D printed, complete with a folding keyboard, a hideaway mouse, a massive battery, and a shoulder strap. It doesn’t have a processor of its own—instead, it uses a Pixel 9 running on GrapheneOS as the engine.
While this is far from the first attempt at turning a smartphone into a laptop, it might be the most thoughtful and modular one yet.
A lapdock built with practicality in mind
A cradle, a slot, and a handle for everything else
The project, shared by Reddit user Rolf_0 on r/GrapheneOS combines custom 3D-printed parts with off-the-shelf hardware to create a portable workstation that springs to life only when a Pixel is plugged in. The creator built an early prototype three months ago.
The build doesn’t have the usual hinge found on laptops. Instead, it opens like a two-door sports car—lifting up and out instead of folding back. The keyboard easily snaps onto the front for carrying and lifts off once you sit down to work. The shell has a dedicated storage slot for a wireless mouse and a built-in 20,000mAh power bank. There is also space for USB-C and HDMI wiring that ties everything to the phone dock, where the Pixel slots into a dedicated cradle.
At the back, the creator has included an integrated reinforced stand for using the device at a comfortable viewing angle. There is a carrying handle that can be used with a shoulder strap, turning the whole device into something closer to a briefcase instead of a laptop bag.
The Pixel does the heavy lifting
The display is just a window
The screen itself is intentionally dumb. The Reddit user doesn’t reveal what display is used, but from the YouTube video, it’s most likely an LCD panel. The screen has no processor, no OS, nothing to update or troubleshoot. Instead, it simply mirrors whatever the Pixel sends it over USB-C. The project utilizes the Pixel 9’s chipset, RAM, and storage to handle all the processing. The creator runs GrapheneOS—a privacy-focused, security-hardened version of Android on their Pixel 9 unit.
- Brand
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Google
- SoC
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Google Tensor G5
The bigger idea here is modularity. The display, power bank, keyboard, and mouse can be replaced individually if one of them stops working. The shell can continue to be useful even after swapping for a newer Pixel. The Reddit user has made the design files and parts list available for free on their Patreon account. They state that more lapdock variants are already in the works.
Samsung DeX may have popularized the idea of replacing a PC with a smartphone. But this project appeals to people who rely heavily on their phones while wanting a larger screen for work. It also removes the need to carry a laptop separately for lighter workloads.

