1) Listen to the song
2) Download mp3 with yt-dlp (constant bitrate)
3) Get lyrics from Genius or other source
4) Rough hyphenation with https://www.plazoo.com/ge/tools.asp
5) Rough syllable tapping/timings with Ultrastar-Creator
6) Fine-tuning of the tapping in Yass
7) Rough pitch setting using ultrastar-pitch (https://github.com/paradigmn/ultrastar_pitch)
8) Fine-tuning of pitches in Yass
9) Testing of song in USDX, changes in Yass
10) Addition of Golden notes, metadata, etc.
11) Upload here
I will maybe note down my workflow in more detail at some point and share it