> For the complete documentation index, see [llms.txt](https://documentation.opencats.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.opencats.org/technical-configuration-options.md).

# Technical configuration options

- [Technical overview of original OpenCATS Source code](https://documentation.opencats.org/technical-configuration-options/technical-overview-of-original-opencats-source-code.md)
- [Access control lists](https://documentation.opencats.org/technical-configuration-options/access-control-lists.md)
- [CMS addons](https://documentation.opencats.org/technical-configuration-options/cms-addons.md)
- [Dev Guide to migrate Legacy to Symfony](https://documentation.opencats.org/technical-configuration-options/dev-guide-to-migrate-legacy-to-symfony.md)
- [Developer Guide](https://documentation.opencats.org/technical-configuration-options/developer-guide.md)
- [Configuration Reference](https://documentation.opencats.org/technical-configuration-options/configuration-reference.md)
- [Security](https://documentation.opencats.org/technical-configuration-options/security.md)
- [How\_to\_install\_Sphinx](https://documentation.opencats.org/technical-configuration-options/how_to_install_sphinx.md)
- [How\_to\_script\_database\_backups](https://documentation.opencats.org/technical-configuration-options/how_to_script_database_backups.md)
- [Docker - OpenCATS Installation Instructions](https://documentation.opencats.org/technical-configuration-options/docker-opencats-installation-instructions.md)
- [LDAP Authentication](https://documentation.opencats.org/technical-configuration-options/ldap_authentication_module.md)
- [Multi lingual\_version](https://documentation.opencats.org/technical-configuration-options/multi-lingual_version.md)
- [OpenCATS Youtube channel](https://documentation.opencats.org/technical-configuration-options/opencats-youtube-channel.md)
- [Prerequisites](https://documentation.opencats.org/technical-configuration-options/pre-requisites.md)
- [Roadmap](https://documentation.opencats.org/technical-configuration-options/roadmap.md)
- [Vital Security: Restrict access to upload folders (.htaccess)](https://documentation.opencats.org/technical-configuration-options/vital-security-restrict-access-to-upload-folders-.htaccess.md)
- [Backup, Restore, and Upgrade](https://documentation.opencats.org/technical-configuration-options/opencats-backup-restore-and-upgrade-instructions-this-section-incomplete.md)