I compiled MicroPython MCU firmware for Espressif ESP32-C3 2MiB-Flash (MCU made by 乐鑫科技 Inc) https://github.com/larygwil/micropython/releases MicroPython 1.19 for ESP32-C3 2M Flash. Built with ESP-IDF v4.4.2 All articles are original (except for those specially claimed) and copyrighted. Copying without permission is …

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Linux itself can only configure system-wide DNS by /etc/resolv.conf. Here is a way to individually set DNS for a specific process, through the mount namespace without root. You only need a simple command if use a script. Method Bubblewrap is an unprivileged (root-free) container tool. We use bwrapcommand to use it to …

Today ( 2022 update ) Firefox's userChrome script (uc script, for short) can still be used. We cannot know whether Mozilla will completely kill the uc script in a far or near future. People have been fearing about that in the past two years, but since 57, it is the uc script that make some people (such as me) don’t …

Github is a platform for many people to display their work, yet the profile page only allows to pin 6 repos. If you have more than 6 works which you want to show: Choose only the 6 ones you want to show the most, and reluctantly hide the others? Make another website to introduce your repo one by one? It's better to …

We need to do two things: Decode QR code on Linux screen and print the result on terminal Convert a string to QR code on terminal, and display the QR code in the terminal for scanning Method Generating QR code qrencode is a common CLI program for generating QR codes, found in many distribution repositories. It supports …

Create "Open Terminal Here" menu for Linux file manager Some Linux GUI file managers do not have a right-click menu "Open terminal here", or some have but don't allow specifying a certain terminal. Because folder also has MIME type ( inode/directory), by associating folder with a terminal through …

Manually associate file extensions and open programs for Linux. When Linux does not recognize a certain extension, we need to create a MIME type for the extension. Linux decides opening program by MIME type, not directly file name extension. Then we associate this MIME type with a program menu item. Manual associate …