Here's some stuff I made for the Ocarina of Time randomizer:

• a fork of the randomizer with some experimental features, with a focus on entrance randomizer: web app • source code
• a fork of the Random Settings script which uses my fork of the randomizer
• Mido's House, a website for organizing tournaments and other events, with subscribable event calendars and a racetime.gg bot that rolls practice seeds and manages tournament races
  • Random Settings League seed archive
• Mido's House Multiworld, an alternative implementation of multiworld with support for cross-platform play between BizHawk and Project64
• an item tracker with auto-tracking support: web app • downloads & source code
• a fork of the TOoTR entrance and location tracker with some experimental additions: web app • source code
• a fork of the Random Settings League's settings tracker, updated for current weights and with more info