libdwarf reads and/or writes DWARF debugging information in Elf object files. dwarfdump uses libdwarf to read object files and print the DWARF content in a readable fashion. libdwarf implements the DWARF2 (and later) standard by providing function interfaces that abstract away many DWARF implementation details (the writer code only emits DWARF2 so far). The source also includes implementations of a few tree search (tsearch) algorithms (balanced, red-black, and binary).
Embedthis ESP is a blazing fast C language Web framework. It is extremely efficient and accesses hardware and system data with ease to create compelling management interfaces. It is not a traditional low-level environment, but a powerhouse MVC framework in a tiny footprint with most things you'd expect from an enterprise Web framework including MVC, scaffolds, templates, WebSockets, integrated databases, database migrations, and more. ESP offers "script-like" productivity: if Web pages or controllers are modified during development, the code is transparently recompiled and reloaded.
LibreS3 is a robust open source implementation of the Amazon S3 service, supporting a subset of the S3 REST API. Standard S3 client libraries and tools (for example python-boto, s3cmd, DragonDisk, etc.) can be used to access it. LibreS3 uses Skylable SX as the storage backend, which automatically provides data deduplication and replication.
Luksus makes it quick and easy to create encrypted volumes such as hard drives, USB sticks, and SD cards on Linux, FreeBSD, and DragonFlyBSD. It can also create encrypted file containers. It is a wrapper for Crypsetup (DM-LUKS), tcplay, and geli. It can also encrypt single files using GnuPG.
SyncWall is a basic wallpaper changer with a special feature, the ability to synchronize wallpaper changes between several workstations with a basic (and unsecured) client/server protocol. Each workstation must share the same pool of files, there is no FTP or Internet download. Other interesting features are simple multi-monitor support and the ability to add special effects to wallpaper.