This is my DIY Palmtop Cyberdeck using the Google Pixel 3A and a mini wireless Bluetooth keyboard. It currently utilizes a Windows 10 theme but can also run Ubuntu Touch. 

Recommended material: PETG

Features:

• Sleek, simple squared design
• 180 degree flip/fold
• Only 2 printed parts with minimal supports
• Snug clamshell prevents phone from sliding around
• Easy to install/remove keyboard for charging
• 4X 4x2mm magnets to help keep case closed (Optional)

Parts:

• Google Pixel 3A - Bought mine used on eBay for $50
• McMaster 5mm pins - 98380A145 (or equivalent 6mm pins)
• Mini Bluetooth Keyboard - AliExpress (or similar size)
• 4x2mm magnets - Bought a set of 50 on Amazon but anywhere should be good.

Assembly: 

1. Install 5mm pins (McMaster PN: 98380A145) on phone side making sure not to drive them all the way through.
2. Line up the 2 printed parts folded closed and push pins in.
   • Light tapping with a rubber mallet might be necessary depending on printer tolerance.
   • Pins should sit flush on outer face of the case.
3. Place the Bluetooth keyboard into the keyboard side
4. Push Pixel 3A into phone side, phone should fit snug with little very little movement in any direction.
5. (Optional) Press magnets into each corner.
   • Make sure magnets are in correct orientation when closing the case before pressing in. They are a tight fit and are not intended to be removed easily once installed.

This was a fun one to make following the trend on r/cyberDeck. With tons of uses, its a nice thing to have around!

Hope you enjoy!