2026-01-28T17:40:20Z https://yabu.me RichSamartino https://yabu.me/npub19vrputk0fxqa9jrqrn9dtg0twsmrma2pluec4l478uxdmggkrpzs55luvw https://cdn.nostrcheck.me/699490b189d6c0375dd00bdc6dbd3da703469414e0980666445a014f5e00ee2a.webp https://cdn.nostrcheck.me/699490b189d6c0375dd00bdc6dbd3da703469414e0980666445a014f5e00ee2a.webp https://yabu.me/nevent1qqsz0uxet9rnu5tncu00ndzxggnp3d8xzth3clrnru42h20z4s0dfpgzyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2yq6lnc Made it to the end of phase 1!<br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/naddr1qvzqqqr4gupzq2cxrchv7jvp6tyxq8x26ks7kapk8h65rlen3tltu0cvmks3vxz9qq55x6rpd3kx2mn8v5knxttpdejz6argv5kk2mny94hkvt2sdpshxefdxykh27f5w9e8qckhcqy" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">naddr1qv…hcqy</a></span> </div> <p>Well I&#39;ve made it to the end of phase 1 of the Boss Challenge. Thinking back to two months ago, I had never heard of the Boss Challenge or even thought about learning Rust or becoming a Bitcoin developer. Here I am one month into the challenge, with three completed challenges under my belt. This has not been easy, but I&#39;ve learned a ton!</p> <p>Challenge 3 centered around spending coins efficiently to minimize transaction fees. The challenge was maybe not as technically difficult as the previous two, but it required a lot of tricky logical thinking and deep understanding of <a href="https://learnmeabitcoin.com/technical/transaction/fee/">transaction fees</a> and <a href="https://bitcoin.stackexchange.com/questions/84004/how-do-virtual-size-stripped-size-and-raw-size-compare-between-legacy-address-f/84006#84006">address weights</a>. This one is graded on a scale and compared against my peers, so I&#39;ll see how I did! It was intimidating to compare myself to other devs, many of whom are moving more quickly through the exercises, but I just had to focus on my own solution and optimize it as well as possible. I&#39;m happy with my effort!</p> <p>I did get a start on challenge 4 which involved setting up a <a href="https://docs.lightning.engineering/lightning-network-tools/lnd/run-lnd">Lightning Node</a> locally and making a couple transactions. Unfortunately I missed the cutoff by just a couple hours to submit my solution and access challenge 5! The program has been very ambiguous on deadlines and evaluation metrics. I respect this, but I might have shifted things around if I had known the deadline was so soon. I think the instructors just want us to focus on learning and not on external evaluation. Ultimately it doesn&#39;t matter what the instructors think about me, what matters is I develop the skills to make real contributions to open source projects. And I&#39;m making a lot of progress in that regard.</p> <p>My Rust skills have a long way to go, but one month ago I had never written a single line. This added a lot of time to my solutions, but will pay off. And I feel much more confident about learning technical Bitcoin details. I feel I gained an especially deep understanding of <a href="https://learnmeabitcoin.com/technical/upgrades/taproot/">Taproot</a>.</p> <p>In typical fashion, program organizers have been ambiguous about phase 2 details. I&#39;m looking forward to more and will be reporting back!</p> </blockquote> 2026-02-12T03:15:02Z https://yabu.me/nevent1qqsg2929vsxd78thh8ty0ctarsu55w7uzmu8cnndsvepnu87peym5tczyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2j9fzx2 Living life 144 blocks (about one day) at a time 😎 2026-02-04T17:31:34Z https://yabu.me/nevent1qqs2dy5cmpvzzxtm8sg7masrxc4as0ldfyd5rkvnxlg8xxx4qhctr2szyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2l07ejm &#34;This is the fun part.&#34; 😂 Maybe it&#39;s type 2 fun but so thankful to Greg Walker and Learn Me a Bitcoin for breaking down technical details of Taproot transactions! <a href="https://learnmeabitcoin.com/technical/upgrades/taproot/#script-path-spend">https://learnmeabitcoin.com/technical/upgrades/taproot/#script-path-spend</a> <img src="https://static.learnmeabitcoin.com/diagrams/png/taproot-script-path-spend.png"> 2026-02-01T21:01:28Z https://yabu.me/nevent1qqszc3guweaf64cmfs572cmw9r4pzktcpp6djhafak7wfxxc78f70nszyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2pg05a8 Sunday reading ☕️<br/><br/> <img src="https://image.nostr.build/e2a32c76f79178e0c59182afcccdb2d339820591d31613b41ab74ca12c308505.jpg"> 2026-01-25T20:59:43Z https://yabu.me/nevent1qqsr7u5yt0tsng2nsa9sdy0ldt39npx66jpe3cayju8fk93n3hfgxugzyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2d8dz4e &#34;What has been lacking until a few years ago is a language with the speed of C/C++ with built-in memory safety assurances. In 2006, a software engineer at Mozilla began working on a new programming language called Rust. Rust version 1.0 was officially announced in 2015. Since then, several prominent software organizations have started to use it in their systems, including Amazon, Facebook, Google, Microsoft, Mozilla, and many others. It is also supported in the development of the Linux kernel.&#34; - CISA <a href="https://www.cisa.gov/news-events/news/urgent-need-memory-safety-software-products">https://www.cisa.gov/news-events/news/urgent-need-memory-safety-software-products</a><br/><blockquote class="border-l-05rem border-l-strongpink border-solid"><div class="-ml-4 bg-gradient-to-r from-gray-100 dark:from-zinc-800 to-transparent mr-0 mt-0 mb-4 pl-4 pr-2 py-2">quoting <br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Article"><a itemprop="url" href="/nevent1qvzqqqqqqypzq2cxrchv7jvp6tyxq8x26ks7kapk8h65rlen3tltu0cvmks3vxz9qqspvyv650q2jzfv7an48nrt0aqy7sq2294ngck5fpdz3365n0zf6lcq63cyr" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1">nevent1q…3cyr</a></span> </div> A couple years ago, the federal government told companies to stop using 'memory-unsafe' languages like C and C++ by 2026 and suggested #rust as an alternative <a href="https://thenewstack.io/feds-critical-software-must-drop-c-c-by-2026-or-face-risk/">https://thenewstack.io/feds-critical-software-must-drop-c-c-by-2026-or-face-risk/</a><br/><br/>"A recent report issued jointly by CISA and the FBI on Product Security Bad Practices warns software manufacturers about bad practices such as using memory-unsafe programming languages like C and C++." </blockquote> 2026-01-15T00:11:53Z https://yabu.me/nevent1qqspvyv650q2jzfv7an48nrt0aqy7sq2294ngck5fpdz3365n0zf6lczyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2u6spxf A couple years ago, the federal government told companies to stop using &#39;memory-unsafe&#39; languages like C and C++ by 2026 and suggested #rust as an alternative <a href="https://thenewstack.io/feds-critical-software-must-drop-c-c-by-2026-or-face-risk/">https://thenewstack.io/feds-critical-software-must-drop-c-c-by-2026-or-face-risk/</a><br/><br/>&#34;A recent report issued jointly by CISA and the FBI on Product Security Bad Practices warns software manufacturers about bad practices such as using memory-unsafe programming languages like C and C++.&#34; 2026-01-15T00:10:05Z https://yabu.me/nevent1qqsfeg3zvyv8ps489nfnzpflll55pkt5hjnxzd2w56dgdp6mpvyp6hgzyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2t66awl Interesting article about the history of #rust <a href="https://www.technologyreview.com/2023/02/14/1067869/rust-worlds-fastest-growing-programming-language/">https://www.technologyreview.com/2023/02/14/1067869/rust-worlds-fastest-growing-programming-language/</a><br/><br/>&#34;The software inside devices like elevators is often written in languages like C++ or C, which are famous for allowing programmers to write code that runs very quickly and is quite compact. The problem is those languages also make it easy to accidentally introduce memory bugs—errors that will cause a crash. Microsoft estimates that 70% of the vulnerabilities in its code are due to memory errors from code written in these languages.&#34; 2026-01-14T23:09:39Z https://yabu.me/nevent1qqsr0fc9gavqyu2p70npq8un2m6f3cxgjz39gndwum4g3m0cvr3r34szyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy249w8zy action should be informed by thought 2026-01-14T18:30:59Z https://yabu.me/nevent1qqsxrrt85lzfkvhdmm3tun59vfpkfwhfj6h3sdh4su4c9f7t7fyh5aczyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2yrkhm5 one of the advantages of #rust:<br/><br/>&#34;When you attempt to access an element using indexing, Rust will check that the index you’ve specified is less than the array length. If the index is greater than or equal to the length, Rust will panic. This check has to happen at runtime, especially in this case, because the compiler can’t possibly know what value a user will enter when they run the code later.<br/><br/>This is an example of Rust’s memory safety principles in action. In many low-level languages, this kind of check is not done, and when you provide an incorrect index, invalid memory can be accessed.&#34;<br/><br/>from <a href="https://doc.rust-lang.org/stable/book/ch03-02-data-types.html#the-array-type">https://doc.rust-lang.org/stable/book/ch03-02-data-types.html#the-array-type</a> 2026-01-14T18:17:50Z https://yabu.me/nevent1qqsxxaxqyqthv5anx3rxsj5e2647m5qtqlkseg97d5wedez2uw439rszyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2wx9v3p In reply to <a href='/nevent1qqs0kpwma9r63503jnh4am3djp84qewfhg6h68lwmn54hkc5saeyudqpul0dv'>nevent1q…l0dv</a><br/>_________________________<br/><br/>It’s a little unfinished 😂 2026-01-14T15:30:43Z https://yabu.me/nevent1qqs9fzuxhm88d4wr97a6gpclfmm35yflw5ykwcfs6p6anu8mkdgkdjgzyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2s36r22 Money can’t buy understanding 2026-01-13T22:37:48Z https://yabu.me/nevent1qqsg9fpa6rjwdh8tmge9lh9wmuuq0kydhcd627prr667r340uazq4kszyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2t4w4r7 can&#39;t have a corner office in a dome 😂 2026-01-13T19:48:33Z https://yabu.me/nevent1qqsd5gfkrf5vmcv9vjd37xs5f8smh44r25a0ave8acj54u007mkmkpczyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2atk6xq Living = learning 2026-01-13T19:42:02Z https://yabu.me/nevent1qqs2jvfpg2wyz0ph0a72gpxtqymre0pl5jmv63ut3uh78t82r9zdtnszyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2cjaqjm Learning #rust<br/> <img src="https://blossom.primal.net/c0fc36084dfaa8ea9cdf77933c8644525da39281321716cac01ce2122b09f882.jpg"> 2026-01-13T19:41:49Z https://yabu.me/nevent1qqs8u65m2zreuew5c68tqwkcydxhkjcd677dehxwau8pgu7ndjhah3qzyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2p3sj9a such a great website for learning bitcoin <a href="https://learnmeabitcoin.com/">https://learnmeabitcoin.com/</a> 2026-01-13T15:08:08Z https://yabu.me/nevent1qqs8hvz0fgm2ap0959lqllykwhgmc52qw5mu5gscsznk0l9klsv8deczyq4sv83weaycr5kgvqwv44dpad6rv004g8ln8zh7hclsehdpzcvy2299ql8 <a href="https://savingsatoshi.com/_next/image?url=%2Fassets%2Fimages%2Fnostr%2Fnostr-share-chapter-10.jpg&amp;w=1200&amp;q=75">https://savingsatoshi.com/_next/image?url=%2Fassets%2Fimages%2Fnostr%2Fnostr-share-chapter-10.jpg&amp;w=1200&amp;q=75</a> Code your way through the mysteries of bitcoin with <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1vy6wcgw6jhhtcmpawvlnsfx7g8qt8r40z7qlks9zwa4ed57vm5eqx527hr" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>savingsatoshi</span> (<span class="italic">npub1vy6…27hr</span>)</a></span> 2025-12-30T07:45:30Z