<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: SebRollen</title><link>https://news.ycombinator.com/user?id=SebRollen</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 13 May 2026 17:57:30 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=SebRollen" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by SebRollen in "Cloudflare to cut about 20% workforce"]]></title><description><![CDATA[
<p>Kind of makes me wonder if the "more than 1,100 employees globally" actually means "1,111" employees. Talk about committing to the bit</p>
]]></description><pubDate>Thu, 07 May 2026 21:15:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=48055160</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=48055160</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48055160</guid></item><item><title><![CDATA[New comment by SebRollen in "Does that use a lot of energy?"]]></title><description><![CDATA[
<p>About 1,200 kWh per transaction, currently[0]. I wrote about this back in 2022, when it was about 2,200 kWh per transaction[1].<p>Edit: made a chart with this data, but adding in a bitcoin transaction[2]<p>[0]: <a href="https://digiconomist.net/bitcoin-energy-consumption" rel="nofollow">https://digiconomist.net/bitcoin-energy-consumption</a><p>[1]: <a href="https://rollen.io/blog/crypto-climate/" rel="nofollow">https://rollen.io/blog/crypto-climate/</a><p>[2]: <a href="https://imgur.com/a/ggAGylW" rel="nofollow">https://imgur.com/a/ggAGylW</a></p>
]]></description><pubDate>Thu, 05 Mar 2026 01:15:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=47256220</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=47256220</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47256220</guid></item><item><title><![CDATA[My Startup Banking Story]]></title><description><![CDATA[
<p>Article URL: <a href="https://mitchellh.com/writing/my-startup-banking-story">https://mitchellh.com/writing/my-startup-banking-story</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=43873757">https://news.ycombinator.com/item?id=43873757</a></p>
<p>Points: 5</p>
<p># Comments: 0</p>
]]></description><pubDate>Fri, 02 May 2025 19:24:22 +0000</pubDate><link>https://mitchellh.com/writing/my-startup-banking-story</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=43873757</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43873757</guid></item><item><title><![CDATA[New comment by SebRollen in "Show HN: Boards – Automate document-heavy tasks"]]></title><description><![CDATA[
<p>Do you have an API?</p>
]]></description><pubDate>Wed, 17 Jul 2024 20:45:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=40990162</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=40990162</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40990162</guid></item><item><title><![CDATA[War Room]]></title><description><![CDATA[
<p>Article URL: <a href="https://war.elk.sh/home">https://war.elk.sh/home</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=39110054">https://news.ycombinator.com/item?id=39110054</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 23 Jan 2024 21:23:11 +0000</pubDate><link>https://war.elk.sh/home</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=39110054</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39110054</guid></item><item><title><![CDATA[New comment by SebRollen in "Changes we're making to Google Assistant"]]></title><description><![CDATA[
<p>The constant "By the way..." from Alexa drove me nuts.<p>If you say "Alexa, stop by the way", it'll get the device to stop responding with follow-ups for ~24h. I ended up creating a routine that runs every night at 4am to lower the volume to zero, automatically say "stop by the way" to the device, and then raise the volume a minute later, and Alexa has stopped with the follow ups</p>
]]></description><pubDate>Sat, 13 Jan 2024 01:15:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=38976374</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=38976374</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38976374</guid></item><item><title><![CDATA[New comment by SebRollen in "Send Me to Heaven"]]></title><description><![CDATA[
<p>I've been tickled by the idea of a follow-up version, Send Me To Hell, where users instead throw their phones _downward_. High scores are awarded based on the maximum speed achieved as the phone hits the ground.</p>
]]></description><pubDate>Mon, 18 Dec 2023 17:02:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=38685104</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=38685104</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38685104</guid></item><item><title><![CDATA[Walden Pond: A little paper zine, full of articles for you to read in your cabin]]></title><description><![CDATA[
<p>Article URL: <a href="https://waldenpond.press/">https://waldenpond.press/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=38447272">https://news.ycombinator.com/item?id=38447272</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 28 Nov 2023 16:10:44 +0000</pubDate><link>https://waldenpond.press/</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=38447272</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38447272</guid></item><item><title><![CDATA[New comment by SebRollen in "Sqids – Generate short unique IDs from numbers"]]></title><description><![CDATA[
<p>The second example for each language sample where the generated squid ends up being “B4aajs” essentially reads as “P0ooop” to a Swedish speaker.<p>Which is fine, they don’t propose to filter “bad” words in other languages, but kind of funny when that’s one of the highlighted examples, right next to the goal of filtering words. Goes to show how hard it is to filter profanity generally for international audiences</p>
]]></description><pubDate>Sun, 26 Nov 2023 02:05:50 +0000</pubDate><link>https://news.ycombinator.com/item?id=38418580</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=38418580</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38418580</guid></item><item><title><![CDATA[New comment by SebRollen in "Don't disable buttons"]]></title><description><![CDATA[
<p>EDIT: My reply below is wrong - you _can_ deal with in-flight requests with E-Tags as well using the if-match header. I had only seen them used with if-none-match. TIL.<p>E-Tags would probably not help here, because the client won't have a tag to send along with its request until after the original response returns. But the thing we're trying to prevent in the first place is multiple concurrent requests being processed.<p>The Idempotency-Key header[1] is probably a better fit, but that relies on the server implementing the spec, including properly dealing with multiple in-flight requests with the same header. I found this blog post[2] pretty good for exploring some of the implementation challenges.<p>[1]: <a href="https://www.ietf.org/archive/id/draft-ietf-httpapi-idempotency-key-header-03.html" rel="nofollow noreferrer">https://www.ietf.org/archive/id/draft-ietf-httpapi-idempoten...</a>.<p>[2]: <a href="http://live.julik.nl/2021/12/actually-creating-a-gem-for-idempotency-keys" rel="nofollow noreferrer">http://live.julik.nl/2021/12/actually-creating-a-gem-for-ide...</a></p>
]]></description><pubDate>Wed, 08 Nov 2023 17:54:02 +0000</pubDate><link>https://news.ycombinator.com/item?id=38194200</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=38194200</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38194200</guid></item><item><title><![CDATA[New comment by SebRollen in "Nota is a language for writing documents, like academic papers and blog posts"]]></title><description><![CDATA[
<p>The Common Paper app[1], though not quite a git workflow, has always struck me as being pretty close to how an software engineer might approach contracts:<p>1. An immutable set of standard terms, with variable references.<p>2. A collection of cover page variables, that modify the standard terms by reference.<p>3. A structured negotiation workflow, where users "propose changes" to the cover page variables with automatic "diff-ing" (redlining).<p>It's not a product targeted to software engineers, but has always appealed to me as a way to sneak in some engineering best-practices into the world of lawyering :)<p>Full disclosure: I'm an employee<p>[1]: <a href="https://commonpaper.com/product/">https://commonpaper.com/product/</a></p>
]]></description><pubDate>Fri, 20 Oct 2023 15:20:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=37957356</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=37957356</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37957356</guid></item><item><title><![CDATA[New comment by SebRollen in "Ask HN: What are the best papers you read in your life?"]]></title><description><![CDATA[
<p>A few fun ones from finance:<p><a href="https://www.cs.tufts.edu/~nr/cs257/archive/simon-peyton-jones/contracts.pdf" rel="nofollow noreferrer">https://www.cs.tufts.edu/~nr/cs257/archive/simon-peyton-jone...</a><p><a href="http://www.thierry-roncalli.com/download/smart-beta-minimum-variance.pdf" rel="nofollow noreferrer">http://www.thierry-roncalli.com/download/smart-beta-minimum-...</a><p><a href="https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3211951" rel="nofollow noreferrer">https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3211951</a></p>
]]></description><pubDate>Fri, 21 Jul 2023 20:14:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=36819045</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=36819045</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36819045</guid></item><item><title><![CDATA[New comment by SebRollen in "First-Citizens Bank to assume deposits and loans of Silicon Valley Bridge Bank"]]></title><description><![CDATA[
<p>Betterment's Cash Reserve[1] might be of interest to you. It's a similar concept, where they spread your deposits among multiple program banks to give you a higher level of FDIC insurance.<p>[1]: <a href="https://www.betterment.com/cash-reserve" rel="nofollow">https://www.betterment.com/cash-reserve</a></p>
]]></description><pubDate>Mon, 27 Mar 2023 15:08:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=35327669</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=35327669</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35327669</guid></item><item><title><![CDATA[New comment by SebRollen in "Show HN: Lander, a lunar lander style web game"]]></title><description><![CDATA[
<p>I managed to get my rocket very very slowly rotating (<0.1° / s), so that I could just hold the acceleration and have it do one arc from launch to crash:<p><pre><code>    Unbelievable, the crater is visible from Earth

    Score: 1712.2 point crash
    Speed: 15226.2mph
    Angle: 174.3°
    Time: 5963 seconds
    Flips: 0
    Max speed: 15226.2mph
    Max height: 1993862ft
    Engine used: 21 times
    Boosters used: 14 times
    https://ehmorris.com/lander/</code></pre></p>
]]></description><pubDate>Mon, 06 Mar 2023 02:45:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=35036948</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=35036948</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35036948</guid></item><item><title><![CDATA[Rendering Markdown Views in Rails]]></title><description><![CDATA[
<p>Article URL: <a href="https://rollen.io/blog/markdown-rails/">https://rollen.io/blog/markdown-rails/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34590040">https://news.ycombinator.com/item?id=34590040</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 31 Jan 2023 02:18:51 +0000</pubDate><link>https://rollen.io/blog/markdown-rails/</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34590040</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34590040</guid></item><item><title><![CDATA[New comment by SebRollen in "Ask HN: Those making $0/month or less on side projects – Show and tell"]]></title><description><![CDATA[
<p>RoQR: <a href="https://roqr.app/" rel="nofollow">https://roqr.app/</a><p>It's a privacy-focused dynamic QR code application. Just got my first paying customer this past week, which I'm pretty stoked about!<p>The costs of running it are very low (~$15 / month), and it's not something I'm planning on ever turning into my main gig, but the fact that someone is willing to pay for an app I built on my own feels really fun</p>
]]></description><pubDate>Sat, 28 Jan 2023 03:16:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=34554771</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34554771</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34554771</guid></item><item><title><![CDATA[The views expressed on this blog are not my own]]></title><description><![CDATA[
<p>Article URL: <a href="https://rollen.io/blog/disclaimer/">https://rollen.io/blog/disclaimer/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34426321">https://news.ycombinator.com/item?id=34426321</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 18 Jan 2023 13:23:37 +0000</pubDate><link>https://rollen.io/blog/disclaimer/</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34426321</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34426321</guid></item><item><title><![CDATA[A Declaration of Digital Independence]]></title><description><![CDATA[
<p>Article URL: <a href="https://rollen.io/blog/declaration/">https://rollen.io/blog/declaration/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34421151">https://news.ycombinator.com/item?id=34421151</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 17 Jan 2023 23:42:19 +0000</pubDate><link>https://rollen.io/blog/declaration/</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34421151</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34421151</guid></item><item><title><![CDATA[It’s time to evolve the 40-hour workweek]]></title><description><![CDATA[
<p>Article URL: <a href="https://workonomics.substack.com/p/its-time-to-evolve-the-40-hour-workweek-e85417efc26b">https://workonomics.substack.com/p/its-time-to-evolve-the-40-hour-workweek-e85417efc26b</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34391333">https://news.ycombinator.com/item?id=34391333</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Sun, 15 Jan 2023 17:51:47 +0000</pubDate><link>https://workonomics.substack.com/p/its-time-to-evolve-the-40-hour-workweek-e85417efc26b</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34391333</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34391333</guid></item><item><title><![CDATA[Some useful Git one-liners]]></title><description><![CDATA[
<p>Article URL: <a href="https://rollen.io/blog/git-oneliners/">https://rollen.io/blog/git-oneliners/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=34377127">https://news.ycombinator.com/item?id=34377127</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Sat, 14 Jan 2023 03:29:00 +0000</pubDate><link>https://rollen.io/blog/git-oneliners/</link><dc:creator>SebRollen</dc:creator><comments>https://news.ycombinator.com/item?id=34377127</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34377127</guid></item></channel></rss>