Andrei Bosco B. Torres andreibosco

If unreal 5.4 is not compiling on rider and returning Unhandled exception: System.ArgumentNullException: Value cannot be null. (Parameter 'element'), try this solution by Sam_Swain.

Source: https://forums.unrealengine.com/t/ubt-bug-no-longer-able-to-compile-plugins-in-standalone-since-5-3/1318659/11

Hacking around I managed to both a) identify the problem plugins, and b) make the build tool immune to this crash.

Open C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.sln in Visual Studio
Make Configuration/ModuleRules.cs writable

How to configure git to use multiple identities/keys with 1Password

Edit ~/.ssh/config
Add an item for each SSH identity/key following this example (replace github with appropriate name):

Host github
HostName github.com
User git
IdentityFile ~/.ssh/id_ed25519_github.pub
IdentitiesOnly yes

Source: https://1password.community/discussion/130911/chosing-which-ssh-key-to-use

Download the public key for both SSH key items:

Move the public keys to your ~/.ssh/ directory.
Configure hosts for your personal and work GitHub profile by appending the following to your ~/.ssh/config:

To restore Linux item to EFI boot list

switch into root: sudo su
list disks and partitions: fdisk -l
find main list filesystem partition and efi partition
create mountpoint: mkdir /mnt/arch
mount partition (additional argument needed for btrfs): mount -t auto -o subvol=@ /dev/nvme0n1p6 /mnt/arch/ (source: https://forum.endeavouros.com/t/chroot-into-a-btrfs-uefi-system-from-live-media/15986/3)
change root into mounted partition: arch-chroot /mnt/arch
mount EFI partition: mount -t auto /dev/nvme0n1p2 /efi/

If you are using an M1 mac and want to build an x86 (64-bit) image:

DOCKER_DEFAULT_PLATFORM=linux/amd64 docker build -t your_name/image_name .

Based on https://davecoyle.com/tech-notes/ssh-keys-on-a-yubikey-mac/

SSH keys on a Yubikey in a Mac

Software Stuff

Install the YubiKey Manager CLI (ykman); alternative installation options can be found here: brew install ykman
Install GPG >= 2.1. Version 2.1 simplified the running of gpg-agent. The version isn’t a hard requirement, but it might make your life easier.

Work in progress

Setup TF1.14 environment for object detection

Based on https://tensorflow-object-detection-api-tutorial.readthedocs.io/en/tensorflow-1.14/index.html

Commands (will try to create a dockerfile based on this later)

# create conda environment with all necessary packages
conda create -n tf114 pip python=3.7 tensorflow-gpu=1.14 gast=0.2.2 pandas pillow lxml jupyter matplotlib opencv cython
conda activate tf114

	if (Translator.BetterBibTeX) {
	if (tex.has.month) {
	tex.add({ name: 'month', value: tex.date.month});
	}
	if (zotero.itemType === 'webpage') {
	if (zotero.accessDate) {
	var customDate = new Date(zotero.accessDate.replace(/\sT?\d+:\d+:\d+./, ''));
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	}

	using UnityEngine;
	using UnityEngine.UI;
	using System.Collections;
	using UnityEngine.SceneManagement;

	public class ScreenFader : MonoBehaviour
	{
	public Image FadeImg;
	public float fadeSpeed = 1.5f;
	public bool sceneStarting = true;

	#!/bin/sh
	# Source: https://stackoverflow.com/a/52962485/481690
	for i in `ls *.png`; do convert $i -background black -alpha remove -alpha off $i; done