This DCC Campaign Tracker Google Sheet is what I use for my (online) DCC campaign, as well as for one-shot convention games. It includes custom character sheets for level 0 as well as each of the level 1+ classes, plus a convenient random level 0 character generator. For funnels, I give each player their own tab in the sheet with 3-4 randomly generated characters. After the funnel, these can be automatically promoted to any of the level 1 classes via a menu function. I also threw in a super basic dice roller for good measure - although I tend to use a Discord dice bot for my games.
I periodically post updates to the sheet. Minor upgrades generally happen in the same sheet and have decimal version numbers such as 3.1, 3.2, etc. Major releases are numbered 2.0, 3.0, etc. and generally require a new sheet entirely. In these cases, I update the prior sheet to link to the new version.
Instructions are in the first tab.