Benjamin Saljooghi benjaminsaljooghi

Open Broadcasting Software for Online Teaching

Hi, in this Gist I will show you how to setup a virtual "TV studio" to broadcast your web-cam, your lecture/tutorial slides and document camera in one video feed over Zoom, Skype or an LMS like Blackboard Collaborate Ultra. Here, I will help you to install and setup Open Broadcasting Software for online teaching from home.

Check out my YouTube video for more help!

Software to Install

After checking multiple tutorials I had to take pieces from each of the following to get this to work on my Win10 system:

Basically it uses the steps from the first article, but under the background path from the second article. Neither article on its own worked for me.

Steps:

Dynamic module loading done right

Follow-up to Top-level await is a footgun – maybe read that first

Here are some things I believe to be true:

Static module syntax is beneficial in lots of ways – code is easier to write (you get better linting etc) and easier to optimise (tree-shaking and other things that are only really possible with static syntax), and most importantly, faster to load (it's trivial for a module loader to load multiple dependencies concurrently when they're declared with a static syntax – not so with imperative statements like require(...) or await import(...)).
App startup time is perhaps when performance is most critical. (You already know this, I don't need to cite the studies.)
If you're in favour of constructs that jeopardise app startup time, you are anti-user. Top-level await is such a construct.

	"""
	Hierarchial Clustering.
	The goal of gist is to show to use scikit-learn to perform agglomerative clustering when:
	1. There is a need for a custom distance metric (like levenshtein distance)
	2. Use the distance in sklearn's API.

	Adapted from: sklearn's FAQ.
	http://scikit-learn.org/stable/faq.html
	"""

	sudo apt install binutils

	cd ~/src/an_autotools_project
	export CXXFLAGS='-fuse-ld=gold'
	export CFLAGS='-fuse-ld=gold'
	./configure
	make -j4 # no longer wait for linking! =D

	# gcc doesn't support -fuse-ld=lld http://gcc.gnu.org/ml/gcc-patches/2016-07/msg00145.html :(

	\usepackage{listings}
	\usepackage{upquote}

	\lstdefinelanguage{FSharp}%
	{morekeywords={let, new, match, with, rec, open, module, namespace, type, of, member, %
	and, for, while, true, false, in, do, begin, end, fun, function, return, yield, try, %
	mutable, if, then, else, cloud, async, static, use, abstract, interface, inherit, finally },
	otherkeywords={ let!, return!, do!, yield!, use!, var, from, select, where, order, by },
	keywordstyle=\color{bluekeywords},
	sensitive=true,

	JC = javac
	.SUFFIXES: .java .class
	.java.class:
	$(JC) *.java

	default: .java.class

	clean:
	$(RM) *.class

	open System
	let sw = System.Diagnostics.Stopwatch()
	sw.Start()
	// some calculations
	sw.Stop()
	System.Console.WriteLine("Time elapsed: {0}", sw.Elapsed);;
	// Time elapsed: 00:07:40.4029123
	sw.Reset()