Verifying keys linux documentation
The linux documentation calls for using the same instructions as OSX. The OSX instructions then use an OSX package name to verify instead of the linux package name. Someone following these instructions on linux will run into an error. It should be noted in the instructions that the linux package name should be substituted for the OSX package name.
Also, the OSX instructions call for a verification that doesn't work on linux (and that contradicts the video instructions): namely, the linux verify command calls for the signature .asc file to be used in conjunction with the .tar package, in that order. The OSX instructions do not require this. The terminal kicks out an "error: file open" error when doing this without the proper command.
Perhaps just adding a couple of simple lines to the linux instructions would be the best solution.