For most up-to-date source code, visit following repositories online.

InfinitEID: https://github.com/Muzosh/InfinitEID
libelectronic-id-with-InfinitEID: https://github.com/Muzosh/libelectronic-id-with-InfinitEID
nextcloud_twofactor_webeid: https://github.com/Muzosh/nextcloud_twofactor_webeid
web-eid-authtoken-validation-php: https://github.com/Muzosh/web-eid-authtoken-validation-php