Direct links relating to the required contest criteria:

Concept-
Is the project creative, original, functional, and pushing boundaries?
  - To my knowledge there are no similar devices currently available
Does the project effectively address the selected challenge?
  - The UCPLA challenge seeks "new designs for adaptive tools... like trackballs or joysticks" The BYTE definitely fits the bill.

Design-
System design:
  Design Process - Evolution!
  Discussion and diagram of main sensor design
  Controller Design Details
CAD models:
  Discussion of the sensor CAD model
Project test methods:
  Testing procedure document
Functional block diagram:
  System block diagram
How user-friendly is the design?
  See the overview video for a usage demonstration

Production-
Is the project realistically reproducible?
  - With the information provided, the BYTE can easily be replicated
Are the manufacturing processes detailed?
  Video showing the assembly process
Are those processes realistic for scalability?
  Path from prototyping -> manufacturing

Benchmark-
How well is the project impact and viability demonstrated?
  Discussion of the viability of the design
  Advantages of the pressure sensor approach
Are estimated costs realistic?
  Discussion of estimated costs
How well does the project improve upon other currently available solutions?
  Discussion of available solutions

Communication-
How thoroughly have the Final Round requirements been completed?
 -Hopefully this summary addresses this point
How well documented is the project?
  Full design package available on Github
How “open” is the design?
  - Firmware license:
    GNU General Public License v3.0
  - Hardware license:
    Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License
    Once the design is finalized the hardware will receive a more permissive license.
    And of course UCPLA is permitted to use the design.

Additional Final Round Requirements:

Working prototype ✓
Video:
- between two (2) minutes and five (5) minutes in length ✓
- shows a working prototype ✓
- describe the challenge it addresses and demonstrate how it facilitates the solution ✓
High-resolution photos of the project inside and out ✓
At least ten (10) Project Log updates ✓
Components list that is complete with a bill of materials for one unit ✓
  Complete Bill of Materials
Complete schematics ✓
  Full System Schematics
  XIAO Controller Schematics
Documented input and output requirements and specifications ✓
  Just in case it is not clear, The only IO requirement is a standard USB C cable