| libnetfilter_cttimeout | Userspace library that provides the programming interface to the connection tracking timeout infrastructure |
| libnetfilter_conntrack | Userspace library providing an API to the in-kernel connection tracking state table |
| memtester | Userspace utility for testing the memory subsystem for faults |
| ntfsprogs-plus | NTFS filesystem userspace utilities |
| chickenPackages_5.chickenEggs.fuse | Filesystems in Userspace |
| stressapptest | Userspace memory and IO stress test tool |
| haskellPackages.uacpid | Userspace Advanced Configuration and Power Interface event daemon |
| perlPackages.CryptRandomTESHA2 | Random numbers using timer/schedule entropy, aka userspace voodoo entropy |
| perl5Packages.CryptRandomTESHA2 | Random numbers using timer/schedule entropy, aka userspace voodoo entropy |
| perl540Packages.CryptRandomTESHA2 | Random numbers using timer/schedule entropy, aka userspace voodoo entropy |
| perl538Packages.CryptRandomTESHA2 | Random numbers using timer/schedule entropy, aka userspace voodoo entropy |