TinyTapeout: Get your design on an actual ASIC

For anyone who wants to dip their toe in integrated circuits (ASIC), this project provides a way to get a tiny (~200 gate) project onto a physical chip. You can do the whole thing in the browser. Deadline for submission is September 1st.

200 gates.. Wonder if one could make a simple ADC with this, say a 8-bit successive approximation (SAR) with I2C registers for readout?

A PWM LED constant-current driver with one-wire bus protocol. Would one only need 2 conductors, for combined power and digital control.