Latest Articles

Extend an LVM Logical Volume to absorb all remaining free space — `lvextend -l +100%FREE` and the resize2fs / xfs_growfs follow-up.

Here is an example of using Django's template language to check if a logged-in user has permissions for a model. The template variable `perms` is available by default, and you can use it to make this determination.

When processing redundant items one by one in sequence, to ensure not to process everything at once, you can use a sleep function after the second loop iteration and onwards.

When compiling a Python C extension (.pyd / .so) fails due to a Python version mismatch, how to detect and switch to a compatible interpreter.

When `docker run -it` over an `ssh` connection errors `the input device is not a TTY`, drop `-t` or invoke ssh with `-t` to allocate a TTY.

Assigning Version Numbers Using Commit Counts for Simplicity

Use the host SSH key in Docker build to access private repos. Combine `DOCKER_BUILDKIT=1` and `--mount=type=ssh` with `StrictHostKeyChecking=no`.

When setting or retrieving the auto_increment value for a table in MySQL, starting from MySQL 8, information_schema is cached. As a result, retrieving AUTO_INCREMENT consecutively may yield outdated values. This article discusses countermeasures for such situations.

Build a Chromium kiosk for web signage on an OrangePi Zero 2W — OS install, Wayland setup, and auto-start configuration.

When you encounter the error "library not found for -lzlib" while trying to run `pip install mysqlclient` on an M2 Mac, setting the environment variables `MYSQLCLIENT_LDFLAGS` and `MYSQLCLIENT_CFLAGS` can help resolve the issue.

Run a web signage kiosk on a Raspberry Pi with Playwright + Chromium — Python script and systemd unit example.

Due to changes in Twitter's developer program specifications, only one app is allowed under the free plan. If you have multiple API accounts, they will be forcibly disabled (with the API accounts entering a SUSPENDED status). Here are the methods to address this situation.

Here is an overview in English of the Japanese blog article: "The blog article introduces a PHP function that checks if a given JAN code is valid. If the JAN code is valid, the function returns true; if it is invalid, it returns false and an error message."

Fix `npm install fibers` (node-fibers) failing with `ValueError: invalid mode: 'rU'` — its `setup.py` uses a deprecated flag, so install with Python 3.10 or older.

Step-by-step guide to the OpenAI ChatGPT API: account, credit card, billing limit, and API key issuance, with screenshots.

Confirm the 'Editing in progress' state when modifying a Mezzanine BlogPost — how to check locks and edit state in the Admin.

Configure a macOS Service (Quick Action) that copies the absolute path of the file or folder open in Finder to the clipboard.

Here's an overview of a blog post detailing how to view the standard output of a serial console connected to a Mac. This method is useful when you need to monitor the output from CircuitPython, among other uses.

Here's an example to illustrate how docker-compose commands can fail and produce confusing error messages if the arguments are not provided in the correct order.

Glossary of real-time pub/sub protocols (MQTT/STOMP/Redis Pub-Sub) and a comparison of Python clients to connect to each.