Passbolt is a free and open source password manager that allows team members to store and share credentials securely. For instance, the wifi password of your office, the administrator password of a router or your organisation social media account password, all of them can be secured using passbolt. Um, the TL;DR? Free & Open source

Vaultwarden is an implementation of the Bitwarden server API written in Rust and compatible with upstream Bitwarden clients*, perfect for self-hosted deployment where running the official resource-heavy service might not be ideal.