lucascs@protonmail.com Lucas Couto Userspace low memory handler. It watches PSI (Pressure Stall Information) -- the kernel's measure of how long tasks actually stall waiting on memory -- along with MemAvailable and swap, and terminates the heaviest offender before the machine starts thrashing. The kernel OOM killer only acts once an allocation has already failed, by which point the desktop has typically been unresponsive for minutes. It is the closest equivalent to systemd-oomd for hosts that do not run systemd: systemd-oomd is also PSI-driven, but ships as a systemd unit and kills whole cgroups, whereas nohang is init-agnostic and picks individual processes through a configurable badness score. Unlike sys-apps/earlyoom it reads PSI rather than free-memory percentages alone. Two configuration profiles are installed and they are mutually exclusive: nohang for headless and conservative setups, nohang-desktop for interactive machines, which additionally warns the logged-in user through desktop notifications before anything is killed. Pull in x11-libs/libnotify and app-admin/sudo, needed by the nohang-desktop profile to send GUI warnings to the logged-in user Alexey Avramov https://github.com/hakavlad/nohang/issues hakavlad/nohang