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Methods for Migrating Virtual Machines From VMware ESXi to Linux-Based Hypervisors
LINBIT's Matt Kereczman surveys ways to move VMs off VMware ESXi to Proxmox VE, KVM/libvirt, oVirt/OLVM, OpenShift Virtualization, OpenNebula or XCP-ng: copying VMDKs and converting with qemu-img, virt-v2v, OVF/OVA export, platform-specific import tools and other approaches, plus what to plan for and how to choose.
8 min · 1,760 words
Using docker-compose with Podman rootless
Elouan Martinet explains how to run docker-compose against rootless Podman by enabling its Docker-compatible user socket and setting DOCKER_HOST, with tips on disabling rootful Docker, podman unshare and podman mount, rootless Docker, and user lingering so containers survive logout.
3 min · 657 words
GPU sharing via Timeslicing in Kubernetes
A write-up on NVIDIA GPU time-slicing in Kubernetes: how the GPU Operator advertises virtual replicas of one GPU so several pods can share it, the context-switching overhead and per-pod observability gaps this brings, how it compares with MPS and MIG, and a glossary of the key terms.
5 min · 1,232 words
Self-hosted HTTP tunnels with SSH and nginx
Vincent Bernat shows how to expose a localhost preview to a friend with only a plain SSH client and an nginx server you control: ssh -R with a dynamic port, an nginx server_name regex mapping per-port subdomains, wildcard TLS via ACME DNS-01, and a helper script plus NixOS module.
4 min · 998 words
Swap, ZRAM, Zswap and Hibernate on NixOS
Matthew Brunelle untangles swap vs ZRAM vs zswap for suspend-then-hibernate on NixOS: why hibernate needs real swap, how swap files complicate resume, and the config that finally worked after several wrong turns.
3 min · 780 words
Sam Rose's interactive ngrok blog post really shows how Kubernetes liveness, readiness, and startup probes work—using webernetes browser demos to explain restart loops, rollout drops, and how probes make apps more resilient.
15 min · 3,465 words