<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: leishman</title><link>https://news.ycombinator.com/user?id=leishman</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 16 Jun 2026 16:25:42 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=leishman" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by leishman in "Time Lock Encryption Oracle"]]></title><description><![CDATA[
<p>Time lock encryption oracle that never sees your files and can be used in the browser or terminal with nothing to install (only curl and openssl needed). File encryption format is compatible across both browser and terminal.</p>
]]></description><pubDate>Sun, 10 May 2026 22:57:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=48089010</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=48089010</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48089010</guid></item><item><title><![CDATA[Time Lock Encryption Oracle]]></title><description><![CDATA[
<p>Article URL: <a href="https://timelock.sh">https://timelock.sh</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48089009">https://news.ycombinator.com/item?id=48089009</a></p>
<p>Points: 4</p>
<p># Comments: 1</p>
]]></description><pubDate>Sun, 10 May 2026 22:57:52 +0000</pubDate><link>https://timelock.sh</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=48089009</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48089009</guid></item><item><title><![CDATA[New comment by leishman in "Ask HN: Who is hiring? (May 2026)"]]></title><description><![CDATA[
<p>River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | <a href="https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4" rel="nofollow">https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4</a><p>I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.<p>River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.<p>Here's what our engineering team is working on:<p><pre><code>  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir

</code></pre>
We're hiring:<p><pre><code>  - Staff Software Engineer (Elixir) | $200K-$250K
  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Senior/Staff Machine Learning Engineer | $200K-$250K
</code></pre>
Apply at <a href="https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4" rel="nofollow">https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4</a></p>
]]></description><pubDate>Fri, 01 May 2026 17:34:38 +0000</pubDate><link>https://news.ycombinator.com/item?id=47977581</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=47977581</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47977581</guid></item><item><title><![CDATA[New comment by leishman in "Ask HN: Who is hiring? (April 2026)"]]></title><description><![CDATA[
<p>River | Senior + Staff Engineers (Elixir, React, ML/AI) | SF or NYC or REMOTE (US, Europe, South America) | Full-Time | $150K-$250K + equity | <a href="https://jobs.ashbyhq.com/river" rel="nofollow">https://jobs.ashbyhq.com/river</a><p>I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.<p>River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.<p>Here's what our engineering team is working on:<p><pre><code>  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir
</code></pre>
We're hiring:<p><pre><code>  - Senior Software Engineer (React, Full-stack) | $150K-$220K
  - Staff Software Engineer (Elixir) | $200K-$250K
  - Staff Software Engineer (ML/AI) | $200K-$250K
</code></pre>
Apply at <a href="https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4" rel="nofollow">https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4</a></p>
]]></description><pubDate>Wed, 01 Apr 2026 20:58:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=47606483</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=47606483</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47606483</guid></item><item><title><![CDATA[New comment by leishman in "The Post-American Internet"]]></title><description><![CDATA[
<p>What’s controversial is that EU rules force censorship.</p>
]]></description><pubDate>Tue, 06 Jan 2026 12:21:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=46511376</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=46511376</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46511376</guid></item><item><title><![CDATA[New comment by leishman in "Ask HN: The government of my country blocked VPN access. What should I use?"]]></title><description><![CDATA[
<p>I'd recommend Obscura because it uses Wireguard over QUIC and it pretty good at avoiding these blocks. It's also open source.</p>
]]></description><pubDate>Thu, 28 Aug 2025 19:18:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=45055929</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=45055929</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45055929</guid></item><item><title><![CDATA[New comment by leishman in "Obscura VPN – Privacy that's more than a promise"]]></title><description><![CDATA[
<p>Would you agree it’s strictly better than a single provider?</p>
]]></description><pubDate>Thu, 20 Feb 2025 14:47:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=43115301</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=43115301</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43115301</guid></item><item><title><![CDATA[New comment by leishman in "Trust, 2-Party Relays, and QUIC"]]></title><description><![CDATA[
<p>There is no perfect solution, but I would argue that a blind relay is very clearly <i>strictly</i> better than the alternative.</p>
]]></description><pubDate>Tue, 11 Feb 2025 20:39:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=43018060</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=43018060</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43018060</guid></item><item><title><![CDATA[New comment by leishman in "Meta in talks to reincorporate in Texas or another state, WSJ reports"]]></title><description><![CDATA[
<p>Actually the top talent wants to work at a company that regularly fires the bottom performers</p>
]]></description><pubDate>Fri, 31 Jan 2025 21:42:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=42892474</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42892474</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42892474</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard? Here's why"]]></title><description><![CDATA[
<p>>Satoshi ninja-mined in the beginning for themselves<p>completely and provably false</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:53:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832761</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832761</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832761</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard (2024)"]]></title><description><![CDATA[
<p>> This comment is peculiar - among technologists, for years the common refrain I’ve heard is “Bitcoin makes no sense but the underlying block chain ideas are very useful”.<p>That's because they have no idea what they're talking about. At a certain point you have to ask yourself why Bitcoin is worth $2T and no enterprise blockchain has ever taken off. How many years more of this trend is required to prove the "technologists" are wrong? It's already been 16 years.<p>And while I don't believe in appeal to authority, it's worth mentioning that I have been working in this field for pretty much my entire career and TA'd the first Stanford CS course on blockchains and crypto currencies in 2015. I very much know what I'm talking about and the people at Vanguard are blindly parroting what Deloitte and McKinsey are telling them about "blockchain".</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:35:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832561</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832561</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832561</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard? Here's why"]]></title><description><![CDATA[
<p>one reason it's better money than Gold, there are no industrial supply/demand dynamics impacting its price. It's pure monetary premium</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:26:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832446</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832446</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832446</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard? Here's why"]]></title><description><![CDATA[
<p>Network effect, first-mover advantage, and fair launch that did not pre-mine coins for insiders. It's the only "pure" one because it was first and honest.</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:25:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832432</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832432</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832432</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard (2024)"]]></title><description><![CDATA[
<p>stablecoins are useful but you don't really need a blockchain. you just need enough of a rube-goldberg machine to claim it's "decentralized". The most popular "blockchain" for stablecoins is Tron, if that tells you anything about why the technology itself doesn't matter</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:10:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832261</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832261</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832261</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard (2024)"]]></title><description><![CDATA[
<p>There is a general purpose ledger for business. It's called a SQL database</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:08:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832247</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832247</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832247</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard (2024)"]]></title><description><![CDATA[
<p>If tokenization requires a trusted party to issue the tokens (think stocks) then no blockchain is needed</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:08:32 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832241</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832241</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832241</guid></item><item><title><![CDATA[New comment by leishman in "No Bitcoin ETFs at Vanguard (2024)"]]></title><description><![CDATA[
<p>"We do have a lot of interest in blockchain, the technology behind cryptocurrencies. We believe its application to a number of other uses besides crypto will make capital markets more efficient, and we’ve been actively involved in research to use blockchain technology."<p>The exact opposite is true. Blockchain "technology" is useless beyond its ability to enable Bitcoin - a monetary innovation. Using it for anything other than that is simply trying to find a problem for a solution. Crypto beyond Bitcoin is also largely useless beyond serving as a democratized casino.</p>
]]></description><pubDate>Sun, 26 Jan 2025 18:02:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=42832161</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=42832161</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42832161</guid></item><item><title><![CDATA[New comment by leishman in "Upgrading Uber's MySQL Fleet"]]></title><description><![CDATA[
<p>Postgres 17 tremendously improves vacuum performance</p>
]]></description><pubDate>Mon, 14 Oct 2024 13:52:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=41837537</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=41837537</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41837537</guid></item><item><title><![CDATA[New comment by leishman in "Evolve Bank and Trust confirms LockBit stole 7.6M people's data"]]></title><description><![CDATA[
<p>> but I'm really confused as to why they always choose the most random obscure bank. Why not partner with a major bank.<p>Because major banks won't support startups looking to compete with them. Why would JPM, BoA, etc. service Mercury who is going after their SMB business banking vertical? Banking is a cartel in the US. The bank lobby makes it as hard as possible to compete with them.</p>
]]></description><pubDate>Tue, 09 Jul 2024 15:59:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=40917621</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=40917621</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40917621</guid></item><item><title><![CDATA[New comment by leishman in "Async Ruby on Rails"]]></title><description><![CDATA[
<p>This is why I love Phoenix/Elixir. You get all of this by default for free.</p>
]]></description><pubDate>Sun, 09 Jun 2024 12:30:04 +0000</pubDate><link>https://news.ycombinator.com/item?id=40623985</link><dc:creator>leishman</dc:creator><comments>https://news.ycombinator.com/item?id=40623985</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40623985</guid></item></channel></rss>