Installation

Install the native messenger (follow :nativeinstall's instructions in Tridactyl)
Put your RC file in ~/.tridactylrc or ~/.config/tridactyl/tridactylrc (with underscores instead of full-stops supported for ease of use on Windows). Also respects XDG_CONFIG_HOME if you care about that sort of thing.
Run :source in Tridactyl or :restart (NB: :restart has a small chance of losing your tabs, back up your session if you care about it).

In case you're running an alternative architecture other than x86_64 you should build the binary yourself instead of using the one supplied by the installer.

bovine3dom's

Fairly simple; the idea was mostly to show off some of Tridactyl's capabilities and work on both Windows + Linux

https://github.com/tridactyl/tridactyl/blob/master/.tridactylrc

burntsushi's

Another tame RC file
Shown here as an example of Tridactyl in the wild

https://gist.github.com/BurntSushi/393546a65db38d57cedcfd72c6d89bf3

glacambre's

Does some pretty cool stuff (e.g. a hint mode which git clones into his project directory)
Changes Tridactyl's binds quite a lot.

https://github.com/glacambre/.dotfiles/blob/master/default/.config/tridactyl/tridactylrc

noctuid's

Contains a list of issues noctuid has with Tridactyl, many of which have been fixed

92b841cb61/browsing/.config/tridactyl/tridactylrc

gholk's

Changes Tridactyl's binds quite a lot.
Many bindings are on the left hand side (so your right hand can use the mouse).
Contain a lot of js and alias, and every command block are sorted.
Very large, contain very long lines. Firefox sync does not work for it.
Work without native messenger.

https://git.ccns.io/gholk/dot-public/-/blob/master/tridactylrc

dmr's gmail example

Shows how to configure tridactyl so that you can use gmail's keybinds instead of shadowing them with tridactyls

https://gist.github.com/dradetsky/12b1e1aba4b699240b3e4ff266bdf3c8