Self Hosting Question

[WarpWing]

Hello,

I wanted to try self hosting databerry. I understand most of the env file. However, I'm confused regarding this:

# Analysze js bundle
ANALYZE=false

# Next Auth
NEXTAUTH_SECRET=XXX

GITHUB_ID=XXX
GITHUB_SECRET=XXX

NEXT_PUBLIC_DASHBOARD_URL=http://localhost:3000

What do I put for my NEXTAUTH_SECRET? Is it whatever I want? What do I also put for my GHID or GHSecret. I got most of it. Is there a way I can manually just add user accounts into the database? I can't seem to sign in or make any sort of account.