All code is here.

Sketches include:

• softwareSerial_ATtiny
• softwareSerial_LEDs_ATtiny
• softwareSerial_LEDs_Mapping_ATtiny
• CapacitiveSensing
  • Arduino
    • CapSense_Arduino_with_LED.
    • HumanCircuit_with_Arduino_LED
  • ATtiny
    • CapSense_ATTiny
    • CapSense_ATTiny_SoftwareSerial
    • CapSense_ATTiny_SoftwareSerial_FadingLEDs
    • Touch_ATtiny_Mellis

https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json