knktc's Notes

Use nested KVM and host-passthrough CPU settings to run an Android x86 emulator with acceleration inside a KVM guest.

Use drf-dynamic-fields to let API callers choose which serializer fields to include or omit through query parameters.

Use Postman test scripts to extract tokens from cookies or JSON responses and store them as reusable variables for later requests.

A quick note showing how to insert post-local images in Hexo using post_asset_folder.

A short note about creating the PYAJS GitHub organization as a casual group for tinkering with both frontend and backend work.

If a RabbitMQ password contains characters like ?, URL-encode it before building the Celery broker URL.

On Fedora 25, Docker may fail to start offline because NetworkManager does not create resolv.conf unless a network is active.

A practical guide for running two Elasticsearch instances on a single host by separating ports, paths, and per-instance config files.

If Kibana 3 cannot connect to Elasticsearch even though the port is open, the real issue may be missing CORS headers.

Two simple ways to avoid interactive password prompts when running pg_dump in scripts or cron jobs.