Dee Cheung DC3

TCP echo server for Node.js

Usage

Make sure you have a modern-ish version of Node.js installed.
Type npx https://gist.github.com/kfox/1280c2f0ee8324067dba15300e0f2fd3
Connect to it from a client, e.g. netcat or similar: nc localhost 9000

This is a guide to configure React Native to be built for native and web platforms with Typescript, Vite.js and Storybook support for modelling components.

Read on Website | Read on GitHub

VS Code setup

Settings are listed in settings.json
Editor Font: Operator Mono
Terminal Font: SpaceMono NF

Significant Extensions

About

I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

On WG server, I started an iperf3 server
On WG peer, I wrote a script that does the following:
- wg-quick down wg0
Edit MTU in the /etc/wireguard/wg0.conf file

Docker on Android 🐋📱

Edit 🎉

All packages, except for Tini have been added to termux-root. To install them, simply pkg install root-repo && pkg install docker. This will install the whole docker suite, left only Tini to be compiled manually.

Summary

Running games through Steam's Proton is great. But what if there is a secondary exe or configuration application bundled with the game? How can you launch it if Steam itself only launches the game?

Simply run this command in a terminal:

cd /path/to/steam/steamapps/compatdata/20920/pfx

STEAM_COMPAT_DATA_PATH="/path/to/steam/steamapps/compatdata/20920" WINEPREFIX=$PWD \
    "$HOME/.steam/root/steamapps/common/Proton 5.0/proton" run ./drive_c/path/to/custom_application.exe

Raspberry Setup APC UPS

What is this?
Raspberry Pi OS (Raspbian) install apcupsd Installation guide

What is apcupsd?
apcupsd is a open source UPS mangement and controlling software, it allows the computer to interact with APC UPSes.

Install apcupsd

First, install apcupsd utility, and the dynamic web page monitor.

Implementing a jq REPL with fzf

Update: I created jq-zsh-plugin that does this.

One of my favourite tools of my trade is jq. It essentially enables you to process json streams with the same power that sed, awk and grep provide you with for editing line-based formats (csv, tsv, etc.).

Another one of my favourite tools is fzf.

	KEYMAPOPTS="us us"
	HOSTNAMEOPTS="-n alpine"
	INTERFACESOPTS="auto lo
	iface lo inet loopback

	auto eth0
	iface eth0 inet dhcp
	hostname alpine
	"
	TIMEZONEOPTS="-z UTC"