diff --git a/.nojekyll b/.nojekyll
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--- a/.nojekyll
+++ b/.nojekyll
@@ -1 +1 @@
-3b08e052
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+fd75c087
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diff --git a/schedule/slides/00-version-control.html b/schedule/slides/00-version-control.html
index 17dc936..4c24ce6 100644
--- a/schedule/slides/00-version-control.html
+++ b/schedule/slides/00-version-control.html
@@ -398,7 +398,7 @@
 <h2>00 Git, Github, and Slack</h2>
 <p><span class="secondary">Stat 406</span></p>
 <p><span class="secondary">Geoff Pleiss, Trevor Campbell</span></p>
-<p>Last modified – 29 August 2024</p>
+<p>Last modified – 02 September 2024</p>
 <p><span class="math display">\[
 \DeclareMathOperator*{\argmin}{argmin}
 \DeclareMathOperator*{\argmax}{argmax}
@@ -475,6 +475,23 @@ <h2>Why these?</h2>
 <section id="git-and-github" class="title-slide slide level1 center">
 <h1>Git and GitHub</h1>
 
+</section>
+<section class="slide level2">
+
+<p><em>But I already know how to use git/Github…</em></p>
+<p>Are you sure?</p>
+<ul>
+<li>Have you used git/Github in a professional team context?</li>
+<li>Do you follow a proper pull request workflow?</li>
+<li>Do you know what files to track and not to track?</li>
+<li>Can you get yourself unstuck from common problems?</li>
+</ul>
+<div class="fragment">
+<p><br></p>
+<p><em>Yes. I really know how to use git/Github.</em></p>
+<p>Then pull out your laptop and read my <a href="https://geoffpleiss.com/git_wizard.pdf">“How To Be a Git Wizard”</a> slides.<br>
+I guarantee (with 99% confidence) that you will learn a new command.</p>
+</div>
 </section>
 <section id="why-version-control" class="slide level2">
 <h2>Why version control?</h2>
@@ -660,8 +677,11 @@ <h2>What should be tracked?</h2>
 <p><strong>TLDR</strong></p>
 <p>Any file that <span class="secondary">YOU</span> edit should be tracked<br>
 Any file that’s <span class="secondary">computer generated</span> should PROBABLY NOT be tracked</p>
+<p><span class="small">However, in this course you will track rendered PDFs of your homeworks/labs. This makes it easier for the graders.</span></p>
 </div>
-<div class="fragment">
+</section>
+<section id="what-should-be-tracked-2" class="slide level2">
+<h2>What should be tracked?</h2>
 <p>A file called <code>.gitignore</code> tells <code>git</code> files or types to never track</p>
 <div class="sourceCode" id="cb6"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb6-1"><a></a><span class="in">```{bash}</span></span>
 <span id="cb6-2"><a></a><span class="in"># History files</span></span>
@@ -679,11 +699,6 @@ <h2>What should be tracked?</h2>
 <span id="cb6-14"><a></a><span class="in">*.so</span></span>
 <span id="cb6-15"><a></a><span class="in">*.DS_Store</span></span>
 <span id="cb6-16"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
-</div>
-</section>
-<section id="what-should-be-tracked-2" class="slide level2">
-<h2>What should be tracked?</h2>
-<p><br></p>
 <p>Shortcut to track everything (use carefully):</p>
 <div class="sourceCode" id="cb7"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb7-1"><a></a><span class="in">```{bash}</span></span>
 <span id="cb7-2"><a></a><span class="in">git add .</span></span>
@@ -734,14 +749,6 @@ <h2>Some things to be aware of</h2>
 <li>See Chapter 13 if RStudio can’t find <code>git</code></li>
 </ol></li>
 </ul>
-</section>
-<section id="if-you-know-all-this-already" class="slide level2">
-<h2>If you know all this already…</h2>
-<p><br></p>
-<div class="center">
-<p>Check out my <a href="https://geoffpleiss.com/git_wizard.pdf">“How To Be a Git Wizard”</a> slides to take your git game to the next level.<br>
-I guarantee (with 99% confidence) that you will learn an amazing new command.</p>
-</div>
 <!--
 ## The `main/develop/branch` workflow
 
@@ -778,7 +785,12 @@ <h2>Guardrails</h2>
 <li>PR templates: Little admonitions when you open a PR</li>
 <li>Branch protection: prevent you from doing stuff</li>
 </ol></li>
-<li><p>In this course, we protect <code>main</code> so that you can’t push there</p></li>
+</ul>
+</section>
+<section id="guardrails-1" class="slide level2">
+<h2>Guardrails</h2>
+<ul>
+<li>Real-world repos often protect <code>main</code> so that you can’t push there</li>
 </ul>
 <div class="callout callout-warning callout-titled callout-style-default">
 <div class="callout-body">
@@ -789,7 +801,7 @@ <h2>Guardrails</h2>
 <p><strong>Warning</strong></p>
 </div>
 <div class="callout-content">
-<p>If you try to push to <code>main</code>, it will give an error like</p>
+<p>You’d see an error like this:</p>
 <div class="sourceCode" id="cb8"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb8-1"><a></a><span class="in">```{bash}</span></span>
 <span id="cb8-2"><a></a><span class="in">remote: error: GH006: Protected branch update failed for refs/heads/main.</span></span>
 <span id="cb8-3"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
@@ -797,11 +809,19 @@ <h2>Guardrails</h2>
 </div>
 </div>
 </div>
+<div class="fragment">
+<ul>
+<li><p>Unfortunately, we can’t set up those protections for this course. Github recently put these protections behind a paywall :(</p></li>
+<li><p>So now it’s your responsibility. Please don’t push to <code>main</code>!</p></li>
+</ul>
+</div>
 </section>
-<section class="slide level2">
-
+<section id="guardrails-2" class="slide level2">
+<h2>Guardrails</h2>
+<div class="flex">
+<div class="w-40">
 <ul>
-<li>I also use a PR template. It gives you some instructions that you should follow</li>
+<li>We have a PR template on the homework and lab repos. It gives you some instructions that you should follow</li>
 </ul>
 <div class="callout callout-important callout-titled callout-style-default">
 <div class="callout-body">
@@ -816,6 +836,15 @@ <h2>Guardrails</h2>
 </div>
 </div>
 </div>
+</div>
+<div class="w-60">
+<div class="quarto-figure quarto-figure-center">
+<figure>
+<p><img data-src="gfx/pr_template.png" class="quarto-figure quarto-figure-center" alt="PR Template"></p>
+</figure>
+</div>
+</div>
+</div>
 </section>
 <section id="operations-in-rstudio" class="slide level2">
 <h2>Operations in Rstudio</h2>
@@ -1017,32 +1046,46 @@ <h2>How to undo in 3 scenarios</h2>
 <section id="recovering-from-things" class="slide level2">
 <h2>Recovering from things</h2>
 <ol type="1">
-<li>Accidentally did work on main, Tried to Push but got refused</li>
+<li>Accidentally did work on main (locally), but didn’t push to Github</li>
 </ol>
 <div class="sourceCode" id="cb21"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb21-1"><a></a><span class="in">```{bash}</span></span>
-<span id="cb21-2"><a></a><span class="in"># make a new branch with everything, but stay on main</span></span>
-<span id="cb21-3"><a></a><span class="in">git branch newbranch</span></span>
-<span id="cb21-4"><a></a><span class="in"># find out where to go to</span></span>
-<span id="cb21-5"><a></a><span class="in">git log</span></span>
-<span id="cb21-6"><a></a><span class="in"># undo everything after ace2193</span></span>
-<span id="cb21-7"><a></a><span class="in">git reset --hard ace2193</span></span>
-<span id="cb21-8"><a></a><span class="in">git checkout newbranch</span></span>
-<span id="cb21-9"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
+<span id="cb21-2"><a></a><span class="in">git branch newbranch  # make a new branch with everything, but stay on main</span></span>
+<span id="cb21-3"><a></a><span class="in">git fetch &amp;&amp; git reset --hard origin/main  # undo everything up to the last commit on Github's main branch</span></span>
+<span id="cb21-4"><a></a><span class="in">git checkout newbranch  # switch to new branch</span></span>
+<span id="cb21-5"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <ol start="2" type="1">
-<li>Made a branch, did lots of work, realized it’s trash, and you want to burn it</li>
+<li>Accidentally did work on main (locally), and pushed to Github<br>
+<span class="small">(PLEASE PLEASE PLEASE don’t do this, but if you do…)</span></li>
 </ol>
 <div class="sourceCode" id="cb22"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb22-1"><a></a><span class="in">```{bash}</span></span>
-<span id="cb22-2"><a></a><span class="in">git checkout main</span></span>
-<span id="cb22-3"><a></a><span class="in">git branch -d badbranch</span></span>
-<span id="cb22-4"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
+<span id="cb22-2"><a></a><span class="in">git branch newbranch  # make a new branch with everything, but stay on main</span></span>
+<span id="cb22-3"><a></a><span class="in"># NOTE: we can't use reset, because the commits are already published!</span></span>
+<span id="cb22-4"><a></a><span class="in">#   You can't delete commits from Github once they've been pushed.</span></span>
+<span id="cb22-5"><a></a><span class="in">#   We instead have to create and push a series of "reverse" commits</span></span>
+<span id="cb22-6"><a></a><span class="in">#   that undo the commits we pushed, and then push those undo commits</span></span>
+<span id="cb22-7"><a></a><span class="in">git fetch &amp;&amp; git revert origin/main..HEAD  # note the different command here!</span></span>
+<span id="cb22-8"><a></a><span class="in">git push origin main</span></span>
+<span id="cb22-9"><a></a><span class="in"># Now we can go to the new branch (without the undo commits)</span></span>
+<span id="cb22-10"><a></a><span class="in">git checkout newbranch  # Switch to new branch</span></span>
+<span id="cb22-11"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
+</section>
+<section id="recovering-from-things-1" class="slide level2">
+<h2>Recovering from things</h2>
 <ol start="3" type="1">
-<li><p>Anything more complicated, either post to Slack or LMGTFY</p></li>
-<li><p>In the Lab next week, you’ll practice</p>
+<li>Made a branch, did lots of work, realized it’s trash, and you want to burn it</li>
+</ol>
+<div class="sourceCode" id="cb23"><pre class="sourceCode numberSource markdown number-lines code-with-copy"><code class="sourceCode markdown"><span id="cb23-1"><a></a><span class="in">```{bash}</span></span>
+<span id="cb23-2"><a></a><span class="in">git checkout main</span></span>
+<span id="cb23-3"><a></a><span class="in">git branch -D badbranch</span></span>
+<span id="cb23-4"><a></a><span class="in">```</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
+<ol start="4" type="1">
+<li><p>Anything more complicated, post to Slack or come to office hours</p></li>
+<li><p>In the Lab next week, you’ll practice</p></li>
+</ol>
 <ul>
 <li>Doing it right.</li>
 <li>Recovering from some mistakes.</li>
-</ul></li>
-</ol>
+</ul>
 </section></section>
 <section id="example-of-setting-up-labs" class="title-slide slide level1 center">
 <h1>Example of setting up labs</h1>
diff --git a/schedule/slides/gfx/pr_template.png b/schedule/slides/gfx/pr_template.png
new file mode 100644
index 0000000..570233f
Binary files /dev/null and b/schedule/slides/gfx/pr_template.png differ
diff --git a/search.json b/search.json
index 109b839..671d3a7 100644
--- a/search.json
+++ b/search.json
@@ -2433,7 +2433,7 @@
     "href": "syllabus.html#health-issues-and-considerations",
     "title": " Syllabus",
     "section": "Health issues and considerations",
-    "text": "Health issues and considerations\n\nCovid Safety in the Classroom\n\n\n\n\n\n\nImportant\n\n\n\nIf you think you’re sick, stay home no matter what.\n\n\nMasks. Masks are recommended. For our in-person meetings in this class, it is important that all of us feel as comfortable as possible engaging in class activities while sharing an indoor space. Masks are a primary tool to make it harder for Covid-19 to find a new host. Please feel free to wear one or not given your own personal circumstances. Note that there are some people who cannot wear a mask. These individuals are equally welcome in our class.\nVaccination. If you have not yet had a chance to get vaccinated against Covid-19, vaccines are available to you, free. See http://www.vch.ca/covid-19/covid-19-vaccine for help finding an appointment. Boosters will be available later this term. The higher the rate of vaccination in our community overall, the lower the chance of spreading this virus. You are an important part of the UBC community. Please arrange to get vaccinated if you have not already done so. The same goes for Flu.\n\n\nYour personal health\n\n\n\n\n\n\nWarning\n\n\n\nIf you are sick, it’s important that you stay home – no matter what you think you may be sick with (e.g., cold, flu, other).\n\n\n\nDo not come to class if you have Covid symptoms, have recently tested positive for Covid, or are required to quarantine. You can check this website to find out if you should self-isolate or self-monitor: http://www.bccdc.ca/health-info/diseases-conditions/covid-19/self-isolation#Who.\nYour precautions will help reduce risk and keep everyone safer. In this class, the marking scheme is intended to provide flexibility so that you can prioritize your health and still be able to succeed. All work can be completed outside of class with reasonable time allowances.\nIf you do miss class because of illness:\n\nMake a connection early in the term to another student or a group of students in the class. You can help each other by sharing notes. If you don’t yet know anyone in the class, post on the discussion forum to connect with other students.\nConsult the class resources on here and on Canvas. We will post all the slides, readings, and recordings for each class day.\nUse Slack for help.\nCome to virtual office hours.\nSee the marking scheme for reassurance about what flexibility you have. No part of your final grade will be directly impacted by missing class.\n\nIf you are sick on final exam day, do not attend the exam. You must follow up with your home faculty’s advising office to apply for deferred standing. Students who are granted deferred standing write the final exam at a later date. If you’re a Science student, you must apply for deferred standing (an academic concession) through Science Advising no later than 48 hours after the missed final exam/assignment. Learn more and find the application online. For additional information about academic concessions, see the UBC policy here.\n\n\n\n\n\n\n\nNote\n\n\n\nPlease talk with me if you have any concerns or ask me if you are worried about falling behind."
+    "text": "Health issues and considerations\n\nCovid Safety in the Classroom\n\n\n\n\n\n\nImportant\n\n\n\nIf you think you’re sick, stay home no matter what.\n\n\nMasks. For our in-person meetings in this class, it is important that all of us feel as comfortable as possible engaging in class activities while sharing an indoor space. Masks are a primary tool to make it harder for Covid-19 to find a new host. Please feel free to wear one or not given your own personal circumstances. Note that there are some people who cannot wear a mask. These individuals are equally welcome in our class.\nVaccination. If you have not yet had a chance to get vaccinated against Covid-19, vaccines are available to you, free. See http://www.vch.ca/covid-19/covid-19-vaccine for help finding an appointment. Boosters will be available later this term. The higher the rate of vaccination in our community overall, the lower the chance of spreading this virus. You are an important part of the UBC community. Please arrange to get vaccinated if you have not already done so. The same goes for Flu.\n\n\nYour personal health\n\n\n\n\n\n\nWarning\n\n\n\nIf you are sick, it’s important that you stay home – no matter what you think you may be sick with (e.g., cold, flu, other).\n\n\n\nDo not come to class if you have Covid symptoms, have recently tested positive for Covid, or are required to quarantine. You can check this website to find out if you should self-isolate or self-monitor: http://www.bccdc.ca/health-info/diseases-conditions/covid-19/self-isolation#Who.\nYour precautions will help reduce risk and keep everyone safer. In this class, the marking scheme is intended to provide flexibility so that you can prioritize your health and still be able to succeed. All work can be completed outside of class with reasonable time allowances.\nIf you do miss class because of illness:\n\nMake a connection early in the term to another student or a group of students in the class. You can help each other by sharing notes. If you don’t yet know anyone in the class, post on the discussion forum to connect with other students.\nConsult the class resources on here and on Canvas. We will post all the slides, readings, and recordings for each class day.\nUse Slack for help.\nCome to virtual office hours.\nSee the marking scheme for reassurance about what flexibility you have. No part of your final grade will be directly impacted by missing class.\n\nIf you are sick on final exam day, do not attend the exam. You must follow up with your home faculty’s advising office to apply for deferred standing. Students who are granted deferred standing write the final exam at a later date. If you’re a Science student, you must apply for deferred standing (an academic concession) through Science Advising no later than 48 hours after the missed final exam/assignment. Learn more and find the application online. For additional information about academic concessions, see the UBC policy here.\n\n\n\n\n\n\n\nNote\n\n\n\nPlease talk with me if you have any concerns or ask me if you are worried about falling behind."
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     "href": "schedule/slides/00-version-control.html#section",
     "title": "UBC Stat406 2024W",
     "section": "00 Git, Github, and Slack",
-    "text": "00 Git, Github, and Slack\nStat 406\nGeoff Pleiss, Trevor Campbell\nLast modified – 29 August 2024\n\\[\n\\DeclareMathOperator*{\\argmin}{argmin}\n\\DeclareMathOperator*{\\argmax}{argmax}\n\\DeclareMathOperator*{\\minimize}{minimize}\n\\DeclareMathOperator*{\\maximize}{maximize}\n\\DeclareMathOperator*{\\find}{find}\n\\DeclareMathOperator{\\st}{subject\\,\\,to}\n\\newcommand{\\E}{E}\n\\newcommand{\\Expect}[1]{\\E\\left[ #1 \\right]}\n\\newcommand{\\Var}[1]{\\mathrm{Var}\\left[ #1 \\right]}\n\\newcommand{\\Cov}[2]{\\mathrm{Cov}\\left[#1,\\ #2\\right]}\n\\newcommand{\\given}{\\ \\vert\\ }\n\\newcommand{\\X}{\\mathbf{X}}\n\\newcommand{\\x}{\\mathbf{x}}\n\\newcommand{\\y}{\\mathbf{y}}\n\\newcommand{\\P}{\\mathcal{P}}\n\\newcommand{\\R}{\\mathbb{R}}\n\\newcommand{\\norm}[1]{\\left\\lVert #1 \\right\\rVert}\n\\newcommand{\\snorm}[1]{\\lVert #1 \\rVert}\n\\newcommand{\\tr}[1]{\\mbox{tr}(#1)}\n\\newcommand{\\brt}{\\widehat{\\beta}^R_{s}}\n\\newcommand{\\brl}{\\widehat{\\beta}^R_{\\lambda}}\n\\newcommand{\\bls}{\\widehat{\\beta}_{ols}}\n\\newcommand{\\blt}{\\widehat{\\beta}^L_{s}}\n\\newcommand{\\bll}{\\widehat{\\beta}^L_{\\lambda}}\n\\newcommand{\\U}{\\mathbf{U}}\n\\newcommand{\\D}{\\mathbf{D}}\n\\newcommand{\\V}{\\mathbf{V}}\n\\]"
+    "text": "00 Git, Github, and Slack\nStat 406\nGeoff Pleiss, Trevor Campbell\nLast modified – 02 September 2024\n\\[\n\\DeclareMathOperator*{\\argmin}{argmin}\n\\DeclareMathOperator*{\\argmax}{argmax}\n\\DeclareMathOperator*{\\minimize}{minimize}\n\\DeclareMathOperator*{\\maximize}{maximize}\n\\DeclareMathOperator*{\\find}{find}\n\\DeclareMathOperator{\\st}{subject\\,\\,to}\n\\newcommand{\\E}{E}\n\\newcommand{\\Expect}[1]{\\E\\left[ #1 \\right]}\n\\newcommand{\\Var}[1]{\\mathrm{Var}\\left[ #1 \\right]}\n\\newcommand{\\Cov}[2]{\\mathrm{Cov}\\left[#1,\\ #2\\right]}\n\\newcommand{\\given}{\\ \\vert\\ }\n\\newcommand{\\X}{\\mathbf{X}}\n\\newcommand{\\x}{\\mathbf{x}}\n\\newcommand{\\y}{\\mathbf{y}}\n\\newcommand{\\P}{\\mathcal{P}}\n\\newcommand{\\R}{\\mathbb{R}}\n\\newcommand{\\norm}[1]{\\left\\lVert #1 \\right\\rVert}\n\\newcommand{\\snorm}[1]{\\lVert #1 \\rVert}\n\\newcommand{\\tr}[1]{\\mbox{tr}(#1)}\n\\newcommand{\\brt}{\\widehat{\\beta}^R_{s}}\n\\newcommand{\\brl}{\\widehat{\\beta}^R_{\\lambda}}\n\\newcommand{\\bls}{\\widehat{\\beta}_{ols}}\n\\newcommand{\\blt}{\\widehat{\\beta}^L_{s}}\n\\newcommand{\\bll}{\\widehat{\\beta}^L_{\\lambda}}\n\\newcommand{\\U}{\\mathbf{U}}\n\\newcommand{\\D}{\\mathbf{D}}\n\\newcommand{\\V}{\\mathbf{V}}\n\\]"
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@@ -2699,14 +2699,14 @@
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     "title": "UBC Stat406 2024W",
     "section": "What should be tracked?",
-    "text": "What should be tracked?\n\n\nTLDR\nAny file that YOU edit should be tracked\nAny file that’s computer generated should PROBABLY NOT be tracked\n\n\nA file called .gitignore tells git files or types to never track\n```{bash}\n# History files\n.Rhistory\n.Rapp.history\n\n# Session Data files\n.RData\n\n# User-specific files\n.Ruserdata\n\n# Compiled junk\n*.o\n*.so\n*.DS_Store\n```"
+    "text": "What should be tracked?\n\n\nTLDR\nAny file that YOU edit should be tracked\nAny file that’s computer generated should PROBABLY NOT be tracked\nHowever, in this course you will track rendered PDFs of your homeworks/labs. This makes it easier for the graders."
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     "title": "UBC Stat406 2024W",
     "section": "What should be tracked?",
-    "text": "What should be tracked?\n\nShortcut to track everything (use carefully):\n```{bash}\ngit add .\n```"
+    "text": "What should be tracked?\nA file called .gitignore tells git files or types to never track\n```{bash}\n# History files\n.Rhistory\n.Rapp.history\n\n# Session Data files\n.RData\n\n# User-specific files\n.Ruserdata\n\n# Compiled junk\n*.o\n*.so\n*.DS_Store\n```\nShortcut to track everything (use carefully):\n```{bash}\ngit add .\n```"
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@@ -2736,13 +2736,6 @@
     "section": "Some things to be aware of",
     "text": "Some things to be aware of\n\nmaster vs main\nIf you think you did something wrong, stop and ask for help\nThere are guardrails in place. But those won’t stop a bulldozer.\nThe hardest part is the initial setup. Then, this should all be rinse-and-repeat.\nThis book is great: Happy Git with R\n\nSee Chapter 6 if you have install problems.\nSee Chapter 9 for credential caching (avoid typing a password all the time)\nSee Chapter 13 if RStudio can’t find git"
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-    "title": "UBC Stat406 2024W",
-    "section": "If you know all this already…",
-    "text": "If you know all this already…\n\n\nCheck out my “How To Be a Git Wizard” slides to take your git game to the next level.\nI guarantee (with 99% confidence) that you will learn an amazing new command."
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@@ -2755,7 +2748,21 @@
     "href": "schedule/slides/00-version-control.html#guardrails",
     "title": "UBC Stat406 2024W",
     "section": "Guardrails",
-    "text": "Guardrails\n\nThe .github directory contains interactions with GitHub\n\nActions: On push / PR / other GitHub does something on their server (builds a website, runs tests on code)\nPR templates: Little admonitions when you open a PR\nBranch protection: prevent you from doing stuff\n\nIn this course, we protect main so that you can’t push there\n\n\n\n\n\n\n\nWarning\n\n\nIf you try to push to main, it will give an error like\n```{bash}\nremote: error: GH006: Protected branch update failed for refs/heads/main.\n```\nThe fix is: make a new branch, then push that."
+    "text": "Guardrails\n\nThe .github directory contains interactions with GitHub\n\nActions: On push / PR / other GitHub does something on their server (builds a website, runs tests on code)\nPR templates: Little admonitions when you open a PR\nBranch protection: prevent you from doing stuff"
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+    "href": "schedule/slides/00-version-control.html#guardrails-1",
+    "title": "UBC Stat406 2024W",
+    "section": "Guardrails",
+    "text": "Guardrails\n\nReal-world repos often protect main so that you can’t push there\n\n\n\n\n\n\n\nWarning\n\n\nYou’d see an error like this:\n```{bash}\nremote: error: GH006: Protected branch update failed for refs/heads/main.\n```\nThe fix is: make a new branch, then push that.\n\n\n\n\n\nUnfortunately, we can’t set up those protections for this course. Github recently put these protections behind a paywall :(\nSo now it’s your responsibility. Please don’t push to main!"
+  },
+  {
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+    "href": "schedule/slides/00-version-control.html#guardrails-2",
+    "title": "UBC Stat406 2024W",
+    "section": "Guardrails",
+    "text": "Guardrails\n\n\n\nWe have a PR template on the homework and lab repos. It gives you some instructions that you should follow\n\n\n\n\n\n\n\nImportant\n\n\nRead the PR template!!"
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@@ -2797,7 +2804,14 @@
     "href": "schedule/slides/00-version-control.html#recovering-from-things",
     "title": "UBC Stat406 2024W",
     "section": "Recovering from things",
-    "text": "Recovering from things\n\nAccidentally did work on main, Tried to Push but got refused\n\n```{bash}\n# make a new branch with everything, but stay on main\ngit branch newbranch\n# find out where to go to\ngit log\n# undo everything after ace2193\ngit reset --hard ace2193\ngit checkout newbranch\n```\n\nMade a branch, did lots of work, realized it’s trash, and you want to burn it\n\n```{bash}\ngit checkout main\ngit branch -d badbranch\n```\n\nAnything more complicated, either post to Slack or LMGTFY\nIn the Lab next week, you’ll practice\n\nDoing it right.\nRecovering from some mistakes."
+    "text": "Recovering from things\n\nAccidentally did work on main (locally), but didn’t push to Github\n\n```{bash}\ngit branch newbranch  # make a new branch with everything, but stay on main\ngit fetch && git reset --hard origin/main  # undo everything up to the last commit on Github's main branch\ngit checkout newbranch  # switch to new branch\n```\n\nAccidentally did work on main (locally), and pushed to Github\n(PLEASE PLEASE PLEASE don’t do this, but if you do…)\n\n```{bash}\ngit branch newbranch  # make a new branch with everything, but stay on main\n# NOTE: we can't use reset, because the commits are already published!\n#   You can't delete commits from Github once they've been pushed.\n#   We instead have to create and push a series of \"reverse\" commits\n#   that undo the commits we pushed, and then push those undo commits\ngit fetch && git revert origin/main..HEAD  # note the different command here!\ngit push origin main\n# Now we can go to the new branch (without the undo commits)\ngit checkout newbranch  # Switch to new branch\n```"
+  },
+  {
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+    "href": "schedule/slides/00-version-control.html#recovering-from-things-1",
+    "title": "UBC Stat406 2024W",
+    "section": "Recovering from things",
+    "text": "Recovering from things\n\nMade a branch, did lots of work, realized it’s trash, and you want to burn it\n\n```{bash}\ngit checkout main\ngit branch -D badbranch\n```\n\nAnything more complicated, post to Slack or come to office hours\nIn the Lab next week, you’ll practice\n\n\nDoing it right.\nRecovering from some mistakes."
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index 4a68099..395ae14 100644
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diff --git a/syllabus.html b/syllabus.html
index a5756fe..762ea6c 100644
--- a/syllabus.html
+++ b/syllabus.html
@@ -446,7 +446,7 @@ <h3 class="anchored" data-anchor-id="covid-safety-in-the-classroom">Covid Safety
 <p>If you think you’re sick, stay home no matter what.</p>
 </div>
 </div>
-<p><strong>Masks.</strong> Masks are recommended. For our in-person meetings in this class, it is important that all of us feel as comfortable as possible engaging in class activities while sharing an indoor space. Masks are a primary tool to make it harder for Covid-19 to find a new host. Please feel free to wear one or not given your own personal circumstances. Note that there are some people who cannot wear a mask. These individuals are equally welcome in our class.</p>
+<p><strong>Masks.</strong> For our in-person meetings in this class, it is important that all of us feel as comfortable as possible engaging in class activities while sharing an indoor space. Masks are a primary tool to make it harder for Covid-19 to find a new host. Please feel free to wear one or not given your own personal circumstances. Note that there are some people who cannot wear a mask. These individuals are equally welcome in our class.</p>
 <p><strong>Vaccination.</strong> If you have not yet had a chance to get vaccinated against Covid-19, vaccines are available to you, free. See <a href="http://www.vch.ca/covid-19/covid-19-vaccine" class="uri">http://www.vch.ca/covid-19/covid-19-vaccine</a> for help finding an appointment. Boosters will be available later this term. The higher the rate of vaccination in our community overall, the lower the chance of spreading this virus. You are an important part of the UBC community. Please arrange to get vaccinated if you have not already done so. The same goes for Flu.</p>
 </section>
 <section id="your-personal-health" class="level3">