Still active?

I am getting [this error](https://github.com/r-lib/remotes/issues/641) when attempting to install. 

```
> devtools::install_github('JuliusCampbell/TITAN')
Using github PAT from envvar GITHUB_PAT
Error: Failed to install 'unknown package' from GitHub:
  HTTP error 401.
  Bad credentials
``` 

Thanks.