Merge branch 'master' of gitlab.ethz.ch:thealternative/courses

cbaf9983 · Alexander Schoch · fa33852f · a12ed82e · cbaf9983 · cbaf9983
Commit cbaf9983 authored Nov 04, 2021 by Alexander Schoch
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ This is a public repository that contains a collection of our current (and past)
 Introduction:
 - [Free and Open Source Software (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/FOSS_course/slides.pdf)
 - [Introduction to Linux (.pdf)](https://gitlab.ethz.ch/thealternative/courses/blob/master/intro_course/slides.pdf)
- [Install Guide](https://thealternative.ch/guides/install.php)
+- [Install Guide](https://gitlab.ethz.ch/thealternative/courses/-/blob/master/install_guide_updated/master/install_guide_updated.pdf)
 - [Bash Guide](https://thealternative.ch/guides/bash.php)

 Console & Bash:

--- a/linux_toolkit_2021/images/slides_QR.png
+++ b/linux_toolkit_2021/images/slides_QR.png
--- a/linux_toolkit_2021/index.html
+++ b/linux_toolkit_2021/index.html
@@ -11,6 +11,18 @@

 class: center, middle

+# Slides
+
+<img src="images/slides_QR.png" width="50%">
+
+<a> http://0x0.st/N0oX</a>
+
+Download them from the link, then open `index.html` in your browser
+
+---
+
+class: center, middle
+
 # Linux Toolbox

 Nils Leuzinger
@@ -202,6 +214,8 @@ Both redirect command output:

 <img src="images/catpiperedirection.png" width="60%">

+<p style="color: #BBBBBB;">(you're not supposed to pipe cat's output but no one cares)</p>
+
 ---

 # Demo
@@ -255,7 +269,7 @@ Bash is a different way of interacting with your system

 Bash runs in your terminal.

-Bash is a shell. there are others: Zsh, fish, Dash, csh
+Bash is a shell. There are others: Zsh, fish, Dash, csh

 Resources: 
 - our bash guide (https://thealternative.ch/guides/bash.php)
@@ -346,7 +360,7 @@ class: center, middle

 # Notifications

-Typically, linux has a notification deamon integrated.
+Typically, linux has a notification daemon integrated.

 ```bash
 notify-send "Hello"
@@ -393,7 +407,7 @@ and then let's us choose one of them.
 echo "one,two,three" | rofi -sep ',' -dmenu
 ```

-Rofi's dmenu mode on its own is not useful, but can serve as a powerful launcher  
+Rofi's dmenu mode on its own is not useful, but can serve as a powerful launcher
 when combined with other commands:  

 ```bash
@@ -428,7 +442,7 @@ class: center, middle

 # xbindkeys

-A **keydeamon**! Let's us configure keyboard shortcuts.
+A **keydaemon**! Let's us configure keyboard shortcuts.

 In file `~/.xbindkeysrc`:

@@ -517,7 +531,7 @@ We can put multiple greps together to chain filters!

 Hot tip: Put `alias grep='grep -P'` into `~/.bashrc`.  

-`-P` switches to "extended regular expressions".
+`-P` switches to "Perl regular expressions".

 Unfortunately, there are lots of regex standards with minor differences.  
 Stick with one and don't worry about it (until you do).
@@ -530,7 +544,7 @@ https://www.rexegg.com/

 Hot tip: Put `alias grep='grep -P'` into `~/.bashrc`.  

-`-P` switches to "extended regular expressions".
+`-P` switches to "Perl regular expressions".

 Unfortunately, there are lots of regex standards with minor differences.  
 Stick with one and don't worry about it (until you do).
@@ -704,9 +718,7 @@ git stash
 git pull
 ```

-*Visit the git course next week!*
-
-Also recommended: Git for ages 4 and up (video)
+Recommended: Git for ages 4 and up (video)

 ---

@@ -805,7 +817,7 @@ sleep 0.2
 xdotool key ctrl+w
 ```

-Of course you can bind this to a shortcut!
+Of course you can bind this to a shortcut with **xbindkeys**!
 ```bash
 "xdotool key F6; sleep 0.2; xdotool key ctrl+c; sleep 0.2; xdotool key ctrl+w"
  F10
@@ -862,14 +874,14 @@ class: center, middle

 # Vim

-The best editor since sliced bread.
+The best invention since sliced bread. Observe:

-Tree-based undo function with timetravelling!  
-Composable shortcut keys and modal editing!  
+Composable shortcuts and modal editing!  
+Tree-based undo with timetravelling!  
+Can edit files remotely via SSH!  
 Recursive keyboard macros!  
-Can edit remote files directly via SSH!  
 Takes weeks to learn!  
-29 years old!
+30 years old!

 <img src="images/vimlogo.png" width="40%">

@@ -930,11 +942,13 @@ class: center, middle

 **stow** lets you manage config files easily.  
 **ranger** is a console-based file manager.  
-**i3** is an alternative window manager.  
+**i3** is an alternative window manager.  (<a href="https://events.thealternative.ch/e/window-manager-workshop">come to our workshop in 2 weeks</a>)  
 **Borg** is a great backup tool.  

 ---

+---
+
 # On analysis paralysis

 Having so many choices sometimes makes it hard to start.
@@ -961,7 +975,7 @@ https://thealternative.ch

 # Next up

-Come to the Git talk on Monday, 17:15 (no need to register).
+Come to the Bash talk on Thursday, 17:15 (<a href="https://events.thealternative.ch/e/the-alternative-bash-HS21">register</a>).

 It would be great if you could fill out the feedback:  
 https://feedback.thealternative.ch/
@@ -970,6 +984,16 @@ https://feedback.thealternative.ch/

 ---

+# Bash Mnemonics
+
+**echo** - gives back same thing, like an echo
+**ls** - list  
+**pwd** - present working directory  
+**cd** - change directory  
+**rm** - remove  
+**cat** - con**cat**enate (originally mainly used to concatenate files)  
+
+---

 # Unhelpful descriptions

@@ -980,7 +1004,8 @@ https://feedback.thealternative.ch/
 **screen** is **tmux** for boomers.  
 **Git** is just a bunch of **SVN**s.  
 **Vim** is to vigor as Tom is to Jerry.  
-**Emacs** is a popular alternative to GNU/Hurd.
+**Emacs** is a popular alternative to GNU/Hurd.  
+**OpenRC** is **systemd** without features.  

    </textarea>
    <script src="js/remark.min.js" type="text/javascript"></script>

--- a/piracy/LICENSE
+++ b/piracy/LICENSE
+MIT License
+
+Copyright (c) 2021 Florian Moser
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/piracy/README.md
+++ b/piracy/README.md
+# Piracy
+
+Pirates come in many forms. Some violently board ships, killing the crew and taking its possessions. Others simply want to read "Analysis I - Third Edition". This lecture will be about the latter.
+
+We will explore different ways how to find what you want in the internet, and argue for its ethical and legal standing.
+
+
--- a/piracy/css/remark.css
+++ b/piracy/css/remark.css
+body { font-family: sans-serif; }
+h1, h2, h3 {
+  font-family: serif;
+  font-weight: normal;
+}
+.remark-code, .remark-inline-code { font-family: monospace; }
+
+.row {
+    display: flex;
+}
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+	flex-basis: 0;
+	flex-grow: 1;
+	max-width: 100%;
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+  border-bottom: 1px solid #dee2e6;
+  border-top: 1px solid #dee2e6;
+  width: 100%;
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+
+table th,
+table td {
+  border-top: 1px solid #dee2e6;
+  padding: 5px;
+}
+
+table tr:nth-child(2n) {
+  background-color: rgba(0, 0, 0, 0.05);
+}
+
+table thead th {
+  border-bottom: 2px solid #dee2e6;
+  vertical-align: bottom;
+}
+
+blockquote {
+  background: #dee2e6;
+  margin-left: 0;
+  padding: 0.5em;
+}
+
+blockquote > *:first-child {
+  margin-top: 0;
+}
+
+blockquote > *:last-child {
+  margin-bottom: 0
+}
+
+.color-red {
+  color: red
+}
+
+.ml-2 {
+	margin-left: 2em
+}
+
+.inverted {
+	background-color: black;
+	color: white;
+}
+
+.pyro > .before, .pyro > .after {
+  position: absolute;
+  width: 5px;
+  height: 5px;
+  border-radius: 50%;
+  box-shadow: -120px -218.66667px blue, 248px -16.66667px #00ff84, 190px 16.33333px #002bff, -113px -308.66667px #ff009d, -109px -287.66667px #ffb300, -50px -313.66667px #ff006e, 226px -31.66667px #ff4000, 180px -351.66667px #ff00d0, -12px -338.66667px #00f6ff, 220px -388.66667px #99ff00, -69px -27.66667px #ff0400, -111px -339.66667px #6200ff, 155px -237.66667px #00ddff, -152px -380.66667px #00ffd0, -50px -37.66667px #00ffdd, -95px -175.66667px #a6ff00, -88px 10.33333px #0d00ff, 112px -309.66667px #005eff, 69px -415.66667px #ff00a6, 168px -100.66667px #ff004c, -244px 24.33333px #ff6600, 97px -325.66667px #ff0066, -211px -182.66667px #00ffa2, 236px -126.66667px #b700ff, 140px -196.66667px #9000ff, 125px -175.66667px #00bbff, 118px -381.66667px #ff002f, 144px -111.66667px #ffae00, 36px -78.66667px #f600ff, -63px -196.66667px #c800ff, -218px -227.66667px #d4ff00, -134px -377.66667px #ea00ff, -36px -412.66667px #ff00d4, 209px -106.66667px #00fff2, 91px -278.66667px #000dff, -22px -191.66667px #9dff00, 139px -392.66667px #a6ff00, 56px -2.66667px #0099ff, -156px -276.66667px #ea00ff, -163px -233.66667px #00fffb, -238px -346.66667px #00ff73, 62px -363.66667px #0088ff, 244px -170.66667px #0062ff, 224px -142.66667px #b300ff, 141px -208.66667px #9000ff, 211px -285.66667px #ff6600, 181px -128.66667px #1e00ff, 90px -123.66667px #c800ff, 189px 70.33333px #00ffc8, -18px -383.66667px #00ff33, 100px -6.66667px #ff008c;
+  -moz-animation: 1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards;
+  -webkit-animation: 1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards;
+  -o-animation: 1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards;
+  -ms-animation: 1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards;
+  animation: 1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards; }
+
+.pyro > .after {
+  -moz-animation-delay: 1.25s, 1.25s, 1.25s;
+  -webkit-animation-delay: 1.25s, 1.25s, 1.25s;
+  -o-animation-delay: 1.25s, 1.25s, 1.25s;
+  -ms-animation-delay: 1.25s, 1.25s, 1.25s;
+  animation-delay: 1.25s, 1.25s, 1.25s;
+  -moz-animation-duration: 1.25s, 1.25s, 6.25s;
+  -webkit-animation-duration: 1.25s, 1.25s, 6.25s;
+  -o-animation-duration: 1.25s, 1.25s, 6.25s;
+  -ms-animation-duration: 1.25s, 1.25s, 6.25s;
+  animation-duration: 1.25s, 1.25s, 6.25s; }
+
+@-webkit-keyframes bang {
+  from {
+    box-shadow: 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white; } }
+@-moz-keyframes bang {
+  from {
+    box-shadow: 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white; } }
+@-o-keyframes bang {
+  from {
+    box-shadow: 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white; } }
+@-ms-keyframes bang {
+  from {
+    box-shadow: 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white; } }
+@keyframes bang {
+  from {
+    box-shadow: 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white, 0 0 white; } }
+@-webkit-keyframes gravity {
+  to {
+    transform: translateY(200px);
+    -moz-transform: translateY(200px);
+    -webkit-transform: translateY(200px);
+    -o-transform: translateY(200px);
+    -ms-transform: translateY(200px);
+    opacity: 0; } }
+@-moz-keyframes gravity {
+  to {
+    transform: translateY(200px);
+    -moz-transform: translateY(200px);
+    -webkit-transform: translateY(200px);
+    -o-transform: translateY(200px);
+    -ms-transform: translateY(200px);
+    opacity: 0; } }
+@-o-keyframes gravity {
+  to {
+    transform: translateY(200px);
+    -moz-transform: translateY(200px);
+    -webkit-transform: translateY(200px);
+    -o-transform: translateY(200px);
+    -ms-transform: translateY(200px);
+    opacity: 0; } }
+@-ms-keyframes gravity {
+  to {
+    transform: translateY(200px);
+    -moz-transform: translateY(200px);
+    -webkit-transform: translateY(200px);
+    -o-transform: translateY(200px);
+    -ms-transform: translateY(200px);
+    opacity: 0; } }
+@keyframes gravity {
+  to {
+    transform: translateY(200px);
+    -moz-transform: translateY(200px);
+    -webkit-transform: translateY(200px);
+    -o-transform: translateY(200px);
+    -ms-transform: translateY(200px);
+    opacity: 0; } }
+@-webkit-keyframes position {
+  0%, 19.9% {
+    margin-top: 10%;
+    margin-left: 40%; }
+
+  20%, 39.9% {
+    margin-top: 40%;
+    margin-left: 30%; }
+
+  40%, 59.9% {
+    margin-top: 20%;
+    margin-left: 70%; }
+
+  60%, 79.9% {
+    margin-top: 30%;
+    margin-left: 20%; }
+
+  80%, 99.9% {
+    margin-top: 30%;
+    margin-left: 80%; } }
+@-moz-keyframes position {
+  0%, 19.9% {
+    margin-top: 10%;
+    margin-left: 40%; }
+
+  20%, 39.9% {
+    margin-top: 40%;
+    margin-left: 30%; }
+
+  40%, 59.9% {
+    margin-top: 20%;
+    margin-left: 70%; }
+
+  60%, 79.9% {
+    margin-top: 30%;
+    margin-left: 20%; }
+
+  80%, 99.9% {
+    margin-top: 30%;
+    margin-left: 80%; } }
+@-o-keyframes position {
+  0%, 19.9% {
+    margin-top: 10%;
+    margin-left: 40%; }
+
+  20%, 39.9% {
+    margin-top: 40%;
+    margin-left: 30%; }
+
+  40%, 59.9% {
+    margin-top: 20%;
+    margin-left: 70%; }
+
+  60%, 79.9% {
+    margin-top: 30%;
+    margin-left: 20%; }
+
+  80%, 99.9% {
+    margin-top: 30%;
+    margin-left: 80%; } }
+@-ms-keyframes position {
+  0%, 19.9% {
+    margin-top: 10%;
+    margin-left: 40%; }
+
+  20%, 39.9% {
+    margin-top: 40%;
+    margin-left: 30%; }
+
+  40%, 59.9% {
+    margin-top: 20%;
+    margin-left: 70%; }
+
+  60%, 79.9% {
+    margin-top: 30%;
+    margin-left: 20%; }
+
+  80%, 99.9% {
+    margin-top: 30%;
+    margin-left: 80%; } }
+@keyframes position {
+  0%, 19.9% {
+    margin-top: 10%;
+    margin-left: 40%; }
+
+  20%, 39.9% {
+    margin-top: 40%;
+    margin-left: 30%; }
+
+  40%, 59.9% {
+    margin-top: 20%;
+    margin-left: 70%; }
+
+  60%, 79.9% {
+    margin-top: 30%;
+    margin-left: 20%; }
+
+  80%, 99.9% {
+    margin-top: 30%;
+    margin-left: 80%; } }
\ No newline at end of file
--- a/piracy/css/remark.print.css
+++ b/piracy/css/remark.print.css
+@media print {
+  .remark-slide-scaler {
+    width: 100% !important;
+    height: 100% !important;
+    transform: scale(1) !important;
+    top: 0 !important;
+    left: 0 !important;
+  }
+}
\ No newline at end of file
--- a/piracy/images/thealternative-logo.jpg
+++ b/piracy/images/thealternative-logo.jpg
--- a/piracy/js/remark.driver.js
+++ b/piracy/js/remark.driver.js
+var slideshow = remark.create();
\ No newline at end of file
--- a/piracy/js/remark.min.js
+++ b/piracy/js/remark.min.js
--- a/piracy/piracy.html
+++ b/piracy/piracy.html
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Piracy</title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
+    <link rel="stylesheet" href="css/remark.css">
+    <link rel="stylesheet" media="print" href="css/remark.print.css">
+  </head>
+  <body>
+    <textarea id="source">
+
+class: center, middle
+
+# Piracy
+
+<img src="images/thealternative-logo.jpg" width="30%">
+
+---
+
+# why this talk
+
+motivation:
+- intellectual property is different to real property
+- knowledge should be distributed as much as possible
+- everyone should know what is legal, and think about what is ethical
+
+---
+
+# targets of this course
+
+you:
+- know the central legal provisions / concepts that apply
+- know where to find what you need
+- can argue about legal and ethical standing of what you are accessing
+
+---
+
+class: center, middle
+
+# legal background
+
+---
+
+# what is law about
+
+**not** about finding loopholes  
+about *fairness* and *justice*
+
+society needs balance:
+- free speech vs protection of minorities  
+- individual medical decisions vs medical health of society
+- free movement vs incarceration of dangerous individuals
+
+today:
+- tragedy of the commons vs monopoly
+- protection of creators vs distribution of knowledge
+- market incentives vs market efficiency
+
+---
+
+# intellectual property
+
+
+
+cases:
+- urheberrecht (works like books, photos, videos, drawings)
+- patents (ideas like inventions, processes, 
+
+---
+
+# Urheberrecht
+
+owner of urheberrecht has sole right to allow/deny others access
+
+motivation: tragedy of the commons breaks market
+because anyone case use, and one's use does not impact other's use
+
+but introduces monopoly, leading to market inefficiencies
+
+---
+
+# eigengebrauch (CH) / fair use (US)
+
+eigengebrauch (CH)
+-> can use copyrighted works for Eigengebraucht
+-> excempted is software
+
+fair use (US)
+-> as long as no profits made allowed
+
+---
+
+# breaking the law
+
+in general:
+-> have to reimbruse other party for caused damage
+-> potential additional punishment imposed by the state 
+
+how to be illegal:
+- relative law (inter partes)
+-> you have signed a contract with your employeer to not download something
+
+- absolute law (erga omnes)
+-> some things are forbidden
+
+---
+
+# why its complicated
+
+how to calculate damage cause to other party?
+what if never would have downloaded the product if price would have been known?
+
+---
+
+# where to find stuff
+
+
+examples:
+- https://weboas.is/
+- https://www.reddit.com/r/CrackWatch
+
+---
+
+# download 
+
+- https://sci-hub.se/ (papers) 
+- https://z-lib.org/ (books)
+- https://www.mutaz.net (software)
+
+---
+
+books & more as direct download
+
+---
+
+# other sources
+
+remember; downloading is legal
+
+"Avicii .mp3"
+(search engine tricks)
+
+sites come and go as server weak link -> torrents
+
+music sheets: https://imslp.org/wiki/Main_Page
+
+---