∫ntegrabℓε ∂iﬀerentiαℓs · unorganised notes, code, and writings of random topics

802.11r on OpenWRT

November 27, 2022 blog system

Normally, Wi-Fi connections does not need any explicit set up for roaming. When a station moved away from the access point, it will notice about that and find another AP and reconnect. The 802.11r (fast basic service set transition), however, is to help make this transition faster. Hence it is... [more]

Docker Tutorial

November 11, 2022 blog system

The following is a short tutorial to use Docker, aimed at only the essentials. [more]

Creating a command line program automatically from a Python function

October 8, 2022 blog code

Undeniably Python is quite idiot-friendly language that you don’t need too much learning to get something done. A lot of code out there to copy and the concise language helped too. While writing a Python function is easy, it seems quite a lot of boilerplates needed additionally to make a... [more]

Diskless Debian with NBD

September 30, 2022 blog system

A previous post about diskless Debian setup was using NFS. This is an attempt to try network block device. This can solve some problem caused by NFS, for example, running a docker daemon on such a system that uses overlay storage driver, which only supports a few backing file systems.... [more]

Keyword-only arguments, positional-only arguments, and Python decorators

September 27, 2022 blog code

In Python 3, we can define a function with keyword-only arguments and in Python 3.8, we can further define with positional-only arguments. The syntax is easy, as follows: [more]