I found a kewl compact long-period clock for Minecraft redstone yesterday, but calculating the settings to get the period I wanted was a pain.
With a bit of HTML, CSS, and JS and an unknown amount of my evening, I am now +1 period calculator for said clock:
https://starbeamrainbowlabs.com/labs/redstone/dropper-subclock_clock-period-calculator.html
Link to YT video containing clock: https://youtu.be/XJcu8DfSr8o
Context: I've been quite enjoying the puzzle aspect of Minecraft redstone when designing contraptions for a survival world I've been playing for the past ~1-ish years (I forget exact start date), and I wanted a cactus flower farm.
Cactus flower farms, according to the wiki, need a period of 34 minutes and 6 seconds.