general:

general:
  debug: false
  instance_name:  "SearXNG"
  privacypolicy_url: false
  donation_url: false
  contact_url: false
  enable_metrics: true
  open_metrics: ''
debug$SEARXNG_DEBUG

Allow a more detailed log if you run SearXNG directly. Display detailed error messages in the browser too, so this must be deactivated in production.

donation_url :

Set value to true to use your own donation page written in the searx/info/en/donate.md and use false to disable the donation link altogether.

privacypolicy_url:

Link to privacy policy.

contact_url:

Contact mailto: address or WEB form.

enable_metrics:

Enabled by default. Record various anonymous metrics available at /stats, /stats/errors and /preferences.

open_metrics:

Disabled by default. Set to a secret password to expose an OpenMetrics API at /metrics, e.g. for usage with Prometheus. The /metrics endpoint is using HTTP Basic Auth, where the password is the value of open_metrics set above. The username used for Basic Auth can be randomly chosen as only the password is being validated.