Writing on Kevin Raaijmakers

Fixing WSL interoperability

Wed, 20 May 2026 00:00:00 +0000

The problem#

When interoperability with Windows executables in WSL is broken, launching programs like explorer.exe, code, or clip.exe fails. The system reports something like:

Enabling the QEMU guest agent in pfSense

Tue, 24 Mar 2026 00:00:00 +0000

If you run pfSense as a virtual machine on Proxmox VE, the QEMU guest agent lets Proxmox communicate with the VM properly. Proxmox can then shut down pfSense cleanly instead of hard-powering it off, and read the VM’s IP addresses directly in the Proxmox UI.

Fan control for the Alienware Aurora R12 on Linux

Fri, 20 Mar 2026 00:00:00 +0000

I run my Alienware Aurora R12 desktop on Arch Linux. Out of the box, Linux gives you no nice GUI to switch between quiet, balanced, and performance fan/thermal modes, the way Alienware Command Center (not that it’s great) does on Windows. The good news: the kernel’s alienware-wmi driver exposes a platform-profile sysfs interface you can write to, and tuned can automate this based on the active power profile.

Syncing Let's Encrypt certificates to AdGuard Home on Synology

Wed, 25 Feb 2026 00:00:00 +0000

Synology DSM 7 can automatically request and renew Let’s Encrypt certificates — very convenient. The problem is that other services on the NAS, such as AdGuard Home in Docker, don’t have access to those certificates. Without anything extra, you’d have to copy them manually after every renewal.

Bitwarden as an SSH agent in WSL2

Mon, 16 Feb 2026 00:00:00 +0000

I use Bitwarden to manage my SSH keys. The Bitwarden Desktop app on Windows 11 works fine as an SSH agent, but WSL2 runs in its own lightweight virtual machine without direct access to the Windows SSH agent. The fix: forward Windows named pipes to a Unix socket in WSL2, using npiperelay and socat.

Bitwarden native messaging for Vivaldi on Arch

Sat, 14 Feb 2026 00:00:00 +0000

On Windows 11, the integration between the Bitwarden browser extension and the Bitwarden Desktop app works automatically. On Arch Linux you have to configure that yourself, via a native messaging host.