As the project page does not have a Todo list feature, I will try to "re-use" a project log for this. Starting now and editing later:

- Add 3D models for missing components in KiCAD design (RCA conn, SOT23-6 opamp,HC49 crystal)

Rev 02:

- DONE Add SPI flash (2Mbit, SO-8, 25x20 type)

- DISMISSED Add some LEDs (power rails, monitor detect, SPI activity)

- A̶d̶d̶ ̶b̶u̶t̶t̶o̶n̶ ̶o̶r̶ ̶j̶u̶m̶p̶e̶r̶ ̶t̶o̶ ̶e̶n̶a̶b̶l̶e̶ ̶t̶e̶s̶t̶ ̶m̶o̶d̶e̶  testpin is for factory test only :(  

- DONE Add pull-up resistors on signals nWP_5V, nHOLD_5V

- DONE Disconnect signal Testmode(_5V), it is for factory testing only

- DONE Add in-line resistors on signals nWP_5V, nHOLD_5V on the 'left side' of the pull-up/downs.

- DONE Use 22R - TVS - 22R instead of 75R output impedance matching resistor. TVS type: CG0603MLA-5.5ME

- DONE with  74LVC4245A Replace 74LVX50 with TXS0102 /  TXB0106 / 74LVC4245A / SN74LVC1T45 for availability.

-  Add monitor detect line.