Tech Couch

Passing secrets to applications

Comparing different methods and their tradeoffs

Limiting hardware resources for KVM guest VMs

Fairly dividing physical resources between vms

Scaling to zero is expensive

Runtime bills are only part of total cost

Automated guest vm provisioning on KVM

Spinning up new vms without manual intervention

Record, share or stream terminal sessions with asciinema

Showing others what's happening in your shell

Building an OPNsense environment on KVM

Easy setup for test sandboxes and production workloads alike

Using PostgreSQL as a MongoDB drop-in replacement with FerretDB

Combining MongoDB queries with reliable PostgreSQL storage

Understanding hyperconverged infrastructure

...and how it compares to real cloud stacks

Practical wget use cases

From downloads to web automation

Getting started with KVM and virsh

From zero to a running vm without tripping over errors