John Liu Blog

Every drop counts

CIO-DAS08 ISA card with DFI mother board MBATX-CS620-H310C for MIFE

Legacy ISA Hardware Pass-Through via Custom QEMU/KVM Proxy This documentation outlines the complete engineering pipeline required to bridge a legacy CIO-DAS08 ISA Data Acquisition Card into a virtualized Windows 98 SE / MS-DOS environment running on a modern Linux host machine with MBATX-CS620-H310C motherboard from DFI. It details the underlying hardware mapping architecture, the build process for a custom QEMU binary, deployment strategies, and validation protocols. 1. Hardware Architecture & Electrical Blueprint Map Modern motherboards lack physical ISA slots.

Posted by John Liu Saturday, June 27, 2026

Linux notes

Copy/past between Windows and Ubuntu If Hyper-V’s Enhanced Session continues to fight you, there is a way simpler way to get copy/paste and file sharing working without dealing with xrdp or blue screens at all: SSH. In Basic View, open your Ubuntu terminal and install SSH: sudo apt install openssh-server -y Get your VM’s IP address: ip a Open Command Prompt or PowerShell on your Windows host machine and connect to your VM like this:

Posted by John Liu Saturday, June 27, 2026

Config Claude Desktop with DeepSeek

UPDATE: Add a system environment variable using name “NODE_ENV” with value “production” and restart Claude Desktop. Now you can directly add only DeepSeek models to the model list without need to manually modify the config json file mentioned in this post: deepseek-v4-pro deepseek-v4-flash ====================================== To use DeekSeek v4 in Claude Desktop, enable Developer mode in Claude Desktop first. Top left conor main menue –> Help –> Troubleshooting –> Enable Developer Mode.

Posted by John Liu Sunday, May 17, 2026

Terraform Notes

We use Terraform template to reliably deploy Azure resource. Terraform is not an “installable” program. Simply download from Terraform Downloads page the Windows AMD64 zip file and extract the terraform.exe binary and execute it. To initiate terraform terraform init To test/check what the template will change (add/change/destroy) terraform plan To deploy resources in the template terraform apply To remove all resources in the template terraform destory To import existing resources into the templace.

Posted by John Liu Monday, February 23, 2026

Azure Functions Notes

Some Azure function related articals. References: Azure Functions: The Serverless Powerhouse

Posted by John Liu Wednesday, February 18, 2026