<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: c0nrad</title><link>https://news.ycombinator.com/user?id=c0nrad</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 29 Apr 2026 10:46:45 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=c0nrad" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by c0nrad in "Ask HN: What Are You Working On? (April 2026)"]]></title><description><![CDATA[
<p><a href="https://dmarcdefender.io" rel="nofollow">https://dmarcdefender.io</a>. DMARC service focused on api/integrations. Currently thinking about (1) writing an ml classifier to classify sources, and (2) using rag to automatically generate spf/dkim fix advice for different sources.</p>
]]></description><pubDate>Mon, 13 Apr 2026 13:01:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=47751363</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=47751363</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47751363</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: What are you working on? (February 2026)"]]></title><description><![CDATA[
<p>Two free dmarc tools: 
* dmarc domain scanner <a href="https://dmarcdefender.io/tools/domain-check" rel="nofollow">https://dmarcdefender.io/tools/domain-check</a>
* dmarc xml analyzer: <a href="https://dmarcdefender.io/tools/xml-analyzer" rel="nofollow">https://dmarcdefender.io/tools/xml-analyzer</a></p>
]]></description><pubDate>Mon, 09 Feb 2026 12:31:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=46944531</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=46944531</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46944531</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: What are you working on? (January 2026)"]]></title><description><![CDATA[
<p><a href="https://battlecode.org/" rel="nofollow">https://battlecode.org/</a> is in January, I look forward to it every year.</p>
]]></description><pubDate>Sun, 11 Jan 2026 18:31:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=46578259</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=46578259</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46578259</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: What Are You Working On? (Nov 2025)"]]></title><description><![CDATA[
<p>Building a cheaper DMARC service with no ssotax. <a href="https://dmarcdefender.io" rel="nofollow">https://dmarcdefender.io</a></p>
]]></description><pubDate>Mon, 10 Nov 2025 12:27:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=45875276</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=45875276</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45875276</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: What Are You Working On? (June 2025)"]]></title><description><![CDATA[
<p>Base health counter for Star Wars Unlimited <a href="https://blog.c0nrad.io/posts/swu-health-counter/" rel="nofollow">https://blog.c0nrad.io/posts/swu-health-counter/</a></p>
]]></description><pubDate>Sun, 29 Jun 2025 22:01:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=44416891</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=44416891</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44416891</guid></item><item><title><![CDATA[ROPing from a Macro Expansion; pwn/smal-arey CakeCTF 2022 [video]]]></title><description><![CDATA[
<p>Article URL: <a href="https://www.youtube.com/watch?v=O08PK3eTXts">https://www.youtube.com/watch?v=O08PK3eTXts</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=43193096">https://news.ycombinator.com/item?id=43193096</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Thu, 27 Feb 2025 10:36:15 +0000</pubDate><link>https://www.youtube.com/watch?v=O08PK3eTXts</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=43193096</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43193096</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: Could you share your personal blog here?"]]></title><description><![CDATA[
<p>I do security Capture The Flag (CTF) writeups on YouTube. It's been fun, I've learned a lot, just published my 100th video.<p><a href="https://youtube.com/@SloppyJoePirates">https://youtube.com/@SloppyJoePirates</a></p>
]]></description><pubDate>Wed, 05 Jul 2023 00:46:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=36594325</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=36594325</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36594325</guid></item><item><title><![CDATA[New comment by c0nrad in "DiceCTF 2023 Security Challenge Writeups [video]"]]></title><description><![CDATA[
<p>Not sure if this is interesting to the HN crowd, but some challenge writeups from a recent security Capture the Flag competition.</p>
]]></description><pubDate>Wed, 08 Feb 2023 18:46:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=34712752</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=34712752</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34712752</guid></item><item><title><![CDATA[DiceCTF 2023 Security Challenge Writeups [video]]]></title><description><![CDATA[
<p>Article URL: <a href="https://www.youtube.com/watch?v=0hC-7u_JSzE&list=PLUj83tCk_iA3TkyHd1pDdYRIjTpkp96mA">https://www.youtube.com/watch?v=0hC-7u_JSzE&list=PLUj83tCk_iA3TkyHd1pDdYRIjTpkp96mA</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34712751">https://news.ycombinator.com/item?id=34712751</a></p>
<p>Points: 1</p>
<p># Comments: 1</p>
]]></description><pubDate>Wed, 08 Feb 2023 18:46:25 +0000</pubDate><link>https://www.youtube.com/watch?v=0hC-7u_JSzE&amp;list=PLUj83tCk_iA3TkyHd1pDdYRIjTpkp96mA</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=34712751</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34712751</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: Developers who switched careers, what are you doing now?"]]></title><description><![CDATA[
<p>Going back to school for Physics (age 30). It'd be cool to understand why the universe exists before I die.</p>
]]></description><pubDate>Sun, 20 Mar 2022 16:08:53 +0000</pubDate><link>https://news.ycombinator.com/item?id=30743849</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=30743849</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=30743849</guid></item><item><title><![CDATA[Ask HN: How to Price a Slack App]]></title><description><![CDATA[
<p>We recently released our first Slack App (https://slacklatex.com/) and we're trying to understand the best way to structure pricing.<p>I think the options are:<p><pre><code>  1. $ / month
  2. $ / user / month
  3. $ / active user / month
  4. $ / api call / month
</code></pre>
But I'm not sure how to evaluate which is best. (Nor am I even sure what the criteria for best even is)<p>If anyone has any experience pricing slack apps (or know of any resources), I'd really appreciate any insight. (My email is in bio if that's preferred)</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=28897245">https://news.ycombinator.com/item?id=28897245</a></p>
<p>Points: 16</p>
<p># Comments: 5</p>
]]></description><pubDate>Sun, 17 Oct 2021 15:41:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=28897245</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28897245</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28897245</guid></item><item><title><![CDATA[New comment by c0nrad in "Slack LaTeX"]]></title><description><![CDATA[
<p>Ah thanks for the heads up. We'll wrap it in a html picture block. (Google's <a href="https://web.dev/measure/" rel="nofollow">https://web.dev/measure/</a> recommends webp, but I should have done more research)</p>
]]></description><pubDate>Wed, 13 Oct 2021 13:31:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=28851839</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28851839</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28851839</guid></item><item><title><![CDATA[New comment by c0nrad in "Slack LaTeX"]]></title><description><![CDATA[
<p>Thanks for the insight!</p>
]]></description><pubDate>Wed, 13 Oct 2021 13:29:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=28851815</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28851815</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28851815</guid></item><item><title><![CDATA[New comment by c0nrad in "Slack LaTeX"]]></title><description><![CDATA[
<p>> Interesting article. How much requests can you support for 20/month before losing money with this stack?<p>Ha, I haven't profiled it yet. I'm not too sure. But, I think a decent amount. If a slack team with 10000+ physicists signs up, I may need to talk to them offline.<p>I do plan on doing some stress testing in the future for fun, I'll try to remember to reply here.<p>> partner frontend<p>Yep, to repeat what steve_adams_86 said, she did the frontend completely. Usually I'm forced to do the frontend, it was very nice having someone else just do the whole thing without me.</p>
]]></description><pubDate>Wed, 13 Oct 2021 02:20:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=28847499</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28847499</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28847499</guid></item><item><title><![CDATA[New comment by c0nrad in "Slack LaTeX"]]></title><description><![CDATA[
<p>Disclosure: I used to work at MongoDB, left 2 years ago.<p>True, it probably would have made sense to stay completely within AWS. If I didn't know MongoDB very well, I would have used DynamoDB.<p>But I know MongoDB well, and MongoDB Atlas (the hosted platform) also has a free tier, and it's hosted in ec2, and you can setup VPC peering (so network speed _should_ be comparable to dynamo, but not sure).<p>Also, Atlas (MongoDB's Cloud Platform) has a really nice "charts" product (sort of like a built in web based tableau) which I use for my internal dashboards (it takes <5 minutes to setup, for stuff like "how many customers do I have", "at what stage in the pipeline are they", "how many renders does each customer average", etc), and they have a nice web based "query explorer", which I randomly use when debugging something, when I don't feel like connecting with terminal.<p>But yeah, if I wasn't already biased, I would have used DynamoDB.</p>
]]></description><pubDate>Wed, 13 Oct 2021 01:52:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=28847345</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28847345</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28847345</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: Solo-preneurs, how do you DevOps to save time?"]]></title><description><![CDATA[
<p>(Profitable Solo founder)<p>Thankfully lots of tools do most of the heavy lifting. I use k8s, GKE does most of the work for me. It's very nice to have autoscaling for traffic spikes. Same with database (MongoDB Altas), dead simple autoscaling. I would never run my own k8s nor database.<p>I wrote more details about some of the Ops stuff I do here in a previous similar question:
<a href="https://news.ycombinator.com/item?id=26204402" rel="nofollow">https://news.ycombinator.com/item?id=26204402</a><p>Coincidentally I also wrote some architecture notes about a new product last night:
<a href="https://blog.c0nrad.io/posts/slack-latex/" rel="nofollow">https://blog.c0nrad.io/posts/slack-latex/</a><p>I think everyone's milage will very, but as general principles, staging is nice, reading docs saves time overall, tests help you sleep at night and make it easier to make changes 6 months in the future, simple health checks (or anything on a critical path) help you catch the real issues that need immediate attention.<p>Good luck!</p>
]]></description><pubDate>Tue, 12 Oct 2021 15:09:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=28840678</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28840678</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28840678</guid></item><item><title><![CDATA[Slack LaTeX]]></title><description><![CDATA[
<p>Article URL: <a href="https://blog.c0nrad.io/posts/slack-latex/">https://blog.c0nrad.io/posts/slack-latex/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=28835660">https://news.ycombinator.com/item?id=28835660</a></p>
<p>Points: 63</p>
<p># Comments: 13</p>
]]></description><pubDate>Tue, 12 Oct 2021 03:10:11 +0000</pubDate><link>https://blog.c0nrad.io/posts/slack-latex/</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28835660</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28835660</guid></item><item><title><![CDATA[Slack App for LaTeX]]></title><description><![CDATA[
<p>Article URL: <a href="https://slacklatex.com">https://slacklatex.com</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=28829412">https://news.ycombinator.com/item?id=28829412</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 11 Oct 2021 15:26:31 +0000</pubDate><link>https://slacklatex.com</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=28829412</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=28829412</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: How do solo SaaS founders handle monitoring/PagerDuty?"]]></title><description><![CDATA[
<p><a href="https://cloud.google.com/monitoring/uptime-checks" rel="nofollow">https://cloud.google.com/monitoring/uptime-checks</a><p>If I remember correctly you can specify a bunch of regions for the health checks to originate from. It was super simple to setup (point and click) and it's nice that it's decoupled from the rest of my infrastructure. When there's a failure I get a notification.</p>
]]></description><pubDate>Sat, 20 Feb 2021 16:54:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=26205601</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=26205601</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=26205601</guid></item><item><title><![CDATA[New comment by c0nrad in "Ask HN: How do solo SaaS founders handle monitoring/PagerDuty?"]]></title><description><![CDATA[
<p>I've been solo running/building a startup (csper.io) for over the last year, it just hit profitability a few months ago.<p>It's easier said than done, but if you can prevent issues in the first place, things will be much more enjoyable.<p>Some things that worked well for me:<p><pre><code>  * GKE on GCP is pretty smooth. When there's a spike in traffic everything autoscales up, so I don't have to do anything. Nice observability, things just work. Just make sure to set container cpu/mem limits.
  * Along that same note, I use MongoDB Atlas which also autoscales very nicely. It autoscales both up and down very well, saving both money, and making my infra resilient
  * GCP has a lot of monitoring/alerting/dashboards that I take advantage of. Health checks around the world, easy integration of logs/metrics. I find structured logging (json), makes setting up alerts pretty easy
  * Good consolidated logging for when there is an issue you know exactly what went wrong
  * GCP also support application tracing which can make timing issues easy to debug (although it requires a bit of work to setup) (for example if you are missing an index on some db)
  * Automatic deployments (thanks to k8s), there's no checklist for doing a deploy, I just run a single make command. I can't screw that up
  * A staging environment that's a match of production. Plenty of times I've crashed staging, it's worth every penny. It also makes life much less stressful
  * Lots of tests. The tests aren't important for when I'm writing the code, but for months later when I make changes and want to know I didn't mess something else up. I find a good test suite can really help you sleep at night, specially if the test suite covers the critical paths
  * An easy way for users to contact you if there is an issue. No one is perfect, but being able to respond quickly is usually forgiven.
</code></pre>
Also "stay-cations" are also pretty nice. I try to do one a quarter. I'm still at home if something does break, but I don't do any work for the week. Just load up a new video game and relax for a week. I call it my "monitoring" week.<p>Hope that helps!</p>
]]></description><pubDate>Sat, 20 Feb 2021 14:41:37 +0000</pubDate><link>https://news.ycombinator.com/item?id=26204402</link><dc:creator>c0nrad</dc:creator><comments>https://news.ycombinator.com/item?id=26204402</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=26204402</guid></item></channel></rss>