capscreen is a shell script for screen recording on OpenBSD using ffmpeg(1).  It captures the screen and microphone, and optionally overlays a webcam video feed in the top-right corner.

Welcome to the MinC home page. MinC is a Unix emulator for Windows, based on the OpenBSD operating system. MinC was written to help children at vocational education learn Linux without the hassle of virtualization. It runs on all versions of Windows, except Win95 and Win98.

MinC is a tiny kernel which runs on Windows. The rest of the software was taken verbatim from OpenBSD, version 6.1. This means that by installing MinC, you run OpenBSD on your Windows machine at native speed.

passing from router to vpn

OpenBSD source via CVSweb
vi tutorials.