Airtime lets you take total control of your radio station via the Web with intelligent archive management, powerful search, an easy playlist builder, a simple scheduling calendar, and rock-solid automated playout. Features include fades, cues, playlists, a programme calendar, Icecast, Shoutcast, and Soundcloud integration, DJ and station manager roles, JQuery widgets, Liquidsoap playout, and a record and rebroadcast functionality. Powerful media archive features 'watch' folders to allow stations to magically synchronize files, auto-import files, and has multiple directory support. Users can interact with it through any Web browser. It comes with an 'easy install' package.
Schedule::Cron is a Perl module that provides a simple but complete cron-like scheduler. It can be used for periodically executing Perl subroutines. The philosophy behind Schedule::Cron is to call subroutines periodically from within one single Perl program instead of letting cron trigger several (possibly different) Perl scripts. Everything under one roof. Furthermore, Schedule::Cron provides a mechanism to create crontab entries dynamically, which isn't that easy with cron. It knows about all extensions (at least all extensions the author is aware of, i.e those of "Vixie" cron) for crontab entries like ranges including 'steps', specification of month and days of the week by name, or coexistence of lists and ranges in the same field. It even supports a bit more (like lists and ranges with symbolic names). It has existed since 1999 on CPAN and is successfully used in many projects.
ulatencyd is a scriptable daemon which constantly optimizes the Linux kernel for best user experience. The default configuration tries reduce the latency for a typical desktop system and protects the system from malicious processes and groups. With a different configuration, all other types of systems can be adjusted as well.