Once I move this to a different domain I'll add authentication support from some third party providers. Here's a list of what could be supported.

Phabricator has support for:

• Amazon
• Asana
• Bitbucket
• Disqus
• Facebook
• GitHub
• Google
• JIRA
• Slack
• Twitch
• Twitter
• WordPress

BookStack has support for:

• Google
• GitHub
• Twitter
• Facebook
• Slack
• AzureAD (Microsoft)
• Okta
• GitLab
• Twitch
• Discord

InvenTree has none now but if it ends up using the integration I want it to it'll have a ton of options.

I think I'll end up going with:

• GitHub
• Google
• Twitter

Supporting the same options across all services will be easier. It might also make moving to SSO in the future easier, though I'm not sure about that.