Samuel Villegas devsamuelv

New apparmor strict policies

The recent LTS release of Ubuntu introduced some more strict apparmor policies that are affecting many packages. To fix it is quite simple, add a file so apparmor don't deny Unityhub actions.

You can do it by yourself or use the script utility I wrote. For the script checkout Using the script

Commands to fix it manually

If you installed using the .deb distribution, your Unity Hub binary file is probably at /opt/unityhub/unityhub-bin, so you can just copy-paste the snippet to /etc/apparmor.d/unityhub

The tokio::io::AsyncRead documentation confusingly states:

Poll::Ready(Ok(())) means that data was immediately read and placed into the output buffer. The amount of data read can be determined by the increase in the length of the slice returned by ReadBuf::filled. If the difference is 0, EOF has been reached.

https://docs.rs/tokio/latest/tokio/io/trait.AsyncRead.html

The footgun is that when poll_read is called, buf may already be partially filled. In some cases, this happens just a small fraction of the time in production, causing e.g. the last chunk of a file to be poll_read twice.

Setup code:

Yubikey GPG inside WSL2

Install GPG4Win.
Start up Kleopatra (a UI tool from 1) and make sure your YubiKey is loaded there.
- You can also add GPG4Win to Startup folder using a link with this Target:
```
"C:\Program Files (x86)\GnuPG\bin\gpg-connect-agent.exe" /bye
```
  This will only load the agent at Startup, and you won't be bothered by any UI or tray agent.
Download wsl2-ssh-pageant into your Windows %userprofile%/.ssh directory (Windows dir is important for performance).

What are mixins?

Mixins are a way to inject code or change the minecraft source code directly and should be use with caution. If you can do a PR to Forge or use an event, try those first. If all else fails, then mixins may be a good option to look into. Here are some resources for mixins:

Mixin Official Docs: https://github.com/SpongePowered/Mixin/wiki
Mixin Javadocs: https://jenkins.liteloader.com/view/Other/job/Mixin/javadoc/index.html
Mixin Cheatsheet: https://github.com/2xsaiko/mixin-cheatsheet
MixinExtras (Adds some powerful compatiable mixin options! See their wiki): https://github.com/LlamaLad7/MixinExtras

Now, I'll be honest, the official mixin doc is kind of terrible to learn from for most people. It's extremely dense and and really only helps people who already knows in-depth bytecode and stuff. But most modders aren't like that and just wants to do small stuff lol. But I'll give you the run-down here. There's a few kinds of mixins that you will encounter quite often.

This was a response to a Hacker News comment asking me what I've been up to since 2010. I'm posting it here since HN rejects it with "that comment is too long." I suppose that's fair, since this ended up being something of an autobiography.

--

What happened after 2010?

Understanding Nix Inputs

Every Nix derivation produces a Nix store output that has 3 things:

Executables
Libraries
Data

Executables are always exported using the PATH environment variable. This is pretty much automatic.

	# ======================================= IMPORTS ====================================#
	'''
	pip install Pillow
	pip install numpy
	'''
	from PIL import Image, ImageDraw, ImageFont
	import glob
	import numpy as np

	# ======================================= VARIABLES ====================================#

	/*

	Requires reference to System.Web.Extensions

	*/

	using System;
	using System.Collections.Concurrent;
	using System.Web.Script.Serialization;
	using System.Text;

	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
	font-family: Arial, Helvetica, sans-serif;
	font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
	font-family: 'Courier New', Courier, monospace;
	font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
	font-family: Georgia, 'Times New Roman', Times, serif;
	font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
	font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
	font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

	# ------------------------------------------------
	# Config files are located in /etc/wireguard/wg0
	# ------------------------------------------------

	# ---------- Server Config ----------
	[Interface]
	Address = 10.10.0.1/24 # IPV4 CIDR
	Address = fd86:ea04:1111::1/64 # IPV6 CIDR
	PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE; ip6tables -A FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE # Add forwarding when VPN is started
	PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE; ip6tables -D FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -D POSTROUTING -o eth0 -j MASQUERADE # Remove forwarding when VPN is shutdown