LibreBooking vs Shpool

LibreBooking is an open-source resource scheduling system for organizations that manage reservations. It supports bookings across multiple resources, waitlists and recurring bookings, with check-in for reservations. Role-based access controls, reservation quotas and credits, and granular usage reports help organizations manage access and track use. The interface is described as mobile-friendly and responsive, with custom themes and color schemes. Calendar integration with Outlook and Thunderbird uses ICS; authentication guides cover LDAP, Active Directory, OAuth2 and SAML. An optional RESTful JSON API supports third-party integrations, automation or client applications, and the project provides documentation for custom plugins. Organizations can install a prebuilt release, deploy with Docker, or install manually. Manual installation requires PHP 8.2 or later, Apache 2.4 or later, and MySQL 8.0 or MariaDB 10.6 or later; other web servers are not currently supported or tested. LibreBooking is free, licensed under GPL-3.0, and available for Linux, self-hosted and web use. The README warns that versions earlier than 7.0.0 have a critical vulnerability that can permit unauthenticated administrator account takeover; it says to upgrade to 7.0.0 or later immediately.

Shpool is free, open-source software for keeping named shell sessions alive when connections drop. It targets users who want persistence without terminal multiplexing features such as split windows or tiled panes, preserving native terminal scrollback and copy-paste. For SSH, Shpool runs on the remote host and needs no additional client software. Users reconnect with `shpool attach`; the terminal state is redrawn after reattachment. The command line can list, detach, or kill sessions, and `--ttl` sets a session lifetime. Variables in session names and attach options can redirect terminals to newly named sessions when values change. Bash, zsh, and fish support automatic session-name prompt prefixes. The README documents SSH configuration, shell-function patterns, Cargo installation through crates.io, and Homebrew installation on macOS. Shpool supports Linux, macOS, SSH, and command-line shells. It is licensed Apache-2.0, reports zero advisories, and allows only one client per session.