<p>one hundred internet points if you can successfully guess what this circuit does, and how.</p><p>three hints:</p><p>1: it&#39;s pretty weird.</p><p>2. the inputs and outputs are no more than a couple tens of kilohertz (and are not a fixed frequency - the values shown in the sim below are arbitrary)</p><p>3: it only works in a real circuit and if you simulate this you will not see it doing the weird thing.</p><p>UPDATE: we have a winner. solution is here: <a href="https://chaos.social/@gsuberland/113921571918206983" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">chaos.social/@gsuberland/11392</span><span class="invisible">1571918206983</span></a></p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@gamingonlinux" class="u-url mention">@<span>gamingonlinux</span></a></span> what about meta?</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@mcc" class="u-url mention">@<span>mcc</span></a></span> <br />Yeah, I think I&#39;ve seen folks use client-side git hooks for similar situations. I&#39;ll try to remember details and see if I can find an example tomorrow.</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> i actually have an idiom for test scripts in this repo, so i guess i could make a test script that generates the expected no-access test in the directory that git idiomatically ignores. but i think i&#39;ll just leave the one copy in the no-git scratch directory. This is the AOC project so I probably won&#39;t check this out elsewhere.</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@mcc" class="u-url mention">@<span>mcc</span></a></span> yeah, i create them on demand</p>

<p>git discovery: you cannot check a file you do not have permissions to into a library.</p><p>problem: my repo contains a directory of test files. this directory contains a second directory of &quot;invalid&quot; tests, i.e., tests that the program is *expected* to fail on (and if it doesn&#39;t fail cleanly that&#39;s an error). one of the &quot;invalid&quot; tests is a file the program doesn&#39;t have read permissions to.</p><p>I cannot check my &quot;file with no read permissions&quot; test case into the repository :(</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@gamingonlinux" class="u-url mention">@<span>gamingonlinux</span></a></span> At this point in time I will say to Debian &#39;Good on you&#39;, but also ask &#39;Took you until now to figure this out?&#39;.</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@shriramk" class="u-url mention">@<span>shriramk</span></a></span> </p><p>Though the fact that they didn’t call it “Gödel, Escher, Brown”</p>

<p><span class="h-card" translate="no"><a href="https://mastodon.social/@shriramk" class="u-url mention">@<span>shriramk</span></a></span> </p><p>My favorite nonfiction book; I reread it at least once a year.</p>