Omar's personal page. The lulz are sexless. Mon, 30 Mar 2026 21:52:57 +0000 https://omarish.com/lulz-are-sexless https://omarish.com/lulz-are-sexless InfiniBand ping pong and thunderbolt roundtrips Fri, 22 May 2026 17:00:17 +0000 https://omarish.com/latency-numbers-you-should-know https://omarish.com/latency-numbers-you-should-know Your `.env` File is Training Data Now Mon, 18 May 2026 16:16:13 +0000 https://omarish.com/end-of-obfuscation https://omarish.com/end-of-obfuscation Think twice before going camping. Sun, 10 May 2026 15:45:56 +0000 https://omarish.com/gps https://omarish.com/gps If you're gonna go, go boldly. Tue, 05 May 2026 23:56:40 +0000 https://omarish.com/rabbit-hole https://omarish.com/rabbit-hole Things I learned build a web3 infra company. Sun, 26 Apr 2026 15:43:15 +0000 https://omarish.com/center https://omarish.com/center Well that's your opinion Tue, 28 Apr 2026 18:24:01 +0000 https://omarish.com/where-to-run https://omarish.com/where-to-run Do you want this done correctly or quickly? Yes. Sat, 18 Apr 2026 23:51:03 +0000 https://omarish.com/speed-is-quality https://omarish.com/speed-is-quality Where to fly the plane, or how to fly the plane? Wed, 08 Apr 2026 19:04:55 +0000 https://omarish.com/degrees-of-freedom https://omarish.com/degrees-of-freedom Thinking about compute commodity futures markets. Tue, 31 Mar 2026 21:11:09 +0000 https://omarish.com/compute-futures-markets https://omarish.com/compute-futures-markets Awkward until undeniable. Sun, 29 Mar 2026 17:42:46 +0000 https://omarish.com/same-pom-poms https://omarish.com/same-pom-poms We only decorate words after they stop protecting us. Sat, 28 Mar 2026 23:02:07 +0000 https://omarish.com/incredibly-perfect https://omarish.com/incredibly-perfect When you're making something for yourself, you don't need a `users` table Sun, 22 Feb 2026 21:06:04 +0000 https://omarish.com/lulz-motive https://omarish.com/lulz-motive Fusing identity and work makes you protect your ego instead of improving your creation. Sat, 10 Jan 2026 00:14:36 +0000 https://omarish.com/front-door https://omarish.com/front-door I think Credit Default Swaps and Assassination Markets are under-explored idea spaces. Thu, 23 Oct 2025 03:12:28 +0000 https://omarish.com/great-financial-primitives https://omarish.com/great-financial-primitives Reposting this because the original page is down Thu, 23 Oct 2025 02:56:18 +0000 https://omarish.com/the-day-you-became-a-better-writer https://omarish.com/the-day-you-became-a-better-writer Dante has nothing on this. Thu, 16 Oct 2025 23:24:23 +0000 https://omarish.com/powerplant https://omarish.com/powerplant In a world with infinite opportunity, knowing what you're not is a superpower Fri, 26 Sep 2025 00:27:58 +0000 https://omarish.com/no-eco-mode https://omarish.com/no-eco-mode Why sometimes "just don't quit" is the fastest path to failure. Sat, 01 Feb 2025 19:13:50 +0000 https://omarish.com/dont-quit https://omarish.com/dont-quit Here's why "I want to make the world a better place" sounds good but only for 5 seconds. Tue, 24 Dec 2024 20:11:07 +0000 https://omarish.com/low-information-goals https://omarish.com/low-information-goals Good intentions and continual short term thinking gets you stuck in the waiting place. Fri, 20 Dec 2024 16:49:28 +0000 https://omarish.com/min-max https://omarish.com/min-max Identify as many risks as you can and then decide which you won't hedge. Mon, 16 Dec 2024 02:09:31 +0000 https://omarish.com/risk https://omarish.com/risk Is there really a difference between overthinking and not thinking in the first place? Thu, 26 Sep 2024 15:49:30 +0000 https://omarish.com/overthinking-to-the-point-of-ignorance https://omarish.com/overthinking-to-the-point-of-ignorance Is there a word for a builder who doesn't ship? Wed, 18 Sep 2024 16:33:18 +0000 https://omarish.com/builder-identity-politics https://omarish.com/builder-identity-politics Where's the joke about the economist who's walking down the street Wed, 18 Sep 2024 16:19:29 +0000 https://omarish.com/efficient-market-hypothesis https://omarish.com/efficient-market-hypothesis Reflections on going west and taking a chance. Sun, 31 Dec 2023 07:09:46 +0000 https://omarish.com/we-bill-hourly https://omarish.com/we-bill-hourly Competition from other startups is usually just a distraction. Wed, 17 Apr 2024 17:42:31 +0000 https://omarish.com/idea-maze https://omarish.com/idea-maze Be Direct. Have the Hard Conversation. Don't Waste Time. Sun, 31 Dec 2023 07:09:44 +0000 https://omarish.com/date-night https://omarish.com/date-night I'm not talking about the one you use to write code. Mon, 26 Feb 2024 18:22:35 +0000 https://omarish.com/programming-language https://omarish.com/programming-language Highlighting some key differences between South Carolina and `/dev/null` Tue, 02 Jan 2024 02:35:09 +0000 https://omarish.com/the-way-to-do-the-thing https://omarish.com/the-way-to-do-the-thing Solving Define a `ransackable_attributes` class method in your `ActiveStorage::Attachment` Mon, 01 Jan 2024 21:47:35 +0000 https://omarish.com/active-storage-ransack-error https://omarish.com/active-storage-ransack-error You keep spinning in circles until you realize you were already there. Sun, 31 Dec 2023 17:42:00 +0000 https://omarish.com/going-in-circles https://omarish.com/going-in-circles High Yield Credit sounded so venerable. Sun, 31 Dec 2023 07:09:40 +0000 https://omarish.com/hy-credit-trader https://omarish.com/hy-credit-trader The best version of your own story is the most interesting thing you can share with the world. Sun, 31 Dec 2023 07:09:46 +0000 https://omarish.com/your-own-story https://omarish.com/your-own-story Taking something from an idea to actually shipped feels so good. Sun, 31 Dec 2023 07:09:44 +0000 https://omarish.com/shipping https://omarish.com/shipping Nerd-sniping might be one of the best ways to learn something. Sun, 31 Dec 2023 07:09:41 +0000 https://omarish.com/nerd-snipes https://omarish.com/nerd-snipes Center has raised an $11M seed round led by Thrive Capital and Founders Fund. Sun, 31 Dec 2023 07:09:38 +0000 https://omarish.com/center-seed-round https://omarish.com/center-seed-round How to think about equity between co-founders. Sun, 31 Dec 2023 07:09:39 +0000 https://omarish.com/equity-negotiation https://omarish.com/equity-negotiation Faster test suites lead to better smart contracts. Sun, 31 Dec 2023 07:09:45 +0000 https://omarish.com/waffle-fixtures https://omarish.com/waffle-fixtures When the outrage mob comes knocking, Claude Shannon smiles down on you. Sun, 31 Dec 2023 07:09:45 +0000 https://omarish.com/values-and-information https://omarish.com/values-and-information David Swensen and University Endowments. Sun, 31 Dec 2023 07:09:43 +0000 https://omarish.com/rip-david-swensen https://omarish.com/rip-david-swensen Why flash loans are important. Sun, 31 Dec 2023 07:09:40 +0000 https://omarish.com/flash-loans https://omarish.com/flash-loans The publishing platform that now hosts this site. Sun, 31 Dec 2023 07:09:38 +0000 https://omarish.com/cms-for-hackers https://omarish.com/cms-for-hackers I'm joining Paradigm as an EIR for the next 6 months. Sun, 31 Dec 2023 07:09:43 +0000 https://omarish.com/paradigm-eir https://omarish.com/paradigm-eir Web3.py HTTP and Websocket Providers for Amazon Managed Blockchain Sun, 31 Dec 2023 07:09:36 +0000 https://omarish.com/amb-web3-python https://omarish.com/amb-web3-python Everybody knows feedback can be hard. Here's why. Sun, 31 Dec 2023 07:09:40 +0000 https://omarish.com/feedback https://omarish.com/feedback Lightweight framework for running multistep workflows. Sun, 31 Dec 2023 07:09:36 +0000 https://omarish.com/run-multistep-workflows-with-react-use-workflow https://omarish.com/run-multistep-workflows-with-react-use-workflow Ruby ledger engine I've been thinking about. Sun, 31 Dec 2023 07:09:35 +0000 https://omarish.com/accountable-succinct-ruby-ledger-engine https://omarish.com/accountable-succinct-ruby-ledger-engine Something I believe that not many others do. Sun, 31 Dec 2023 07:09:35 +0000 https://omarish.com/on-randomness-and-hashing-functions https://omarish.com/on-randomness-and-hashing-functions Maybe the actual reason is more prosaic than we thought. Sun, 31 Dec 2023 07:09:35 +0000 https://omarish.com/what-impedes-distributed-ledger-technology https://omarish.com/what-impedes-distributed-ledger-technology You were saying something about.. best intentions? Sun, 31 Dec 2023 07:09:34 +0000 https://omarish.com/we-didn-t-do-anything-wrong-but-somehow-we-lost https://omarish.com/we-didn-t-do-anything-wrong-but-somehow-we-lost Some things I think I've figured out. Sun, 31 Dec 2023 07:09:34 +0000 https://omarish.com/before-long https://omarish.com/before-long Simple pattern for accessing views in Rails. Sun, 31 Dec 2023 07:09:34 +0000 https://omarish.com/postgres-views-in-rails https://omarish.com/postgres-views-in-rails Why blockchain is exciting. Sun, 31 Dec 2023 07:09:33 +0000 https://omarish.com/blockchain-back-office-technologies https://omarish.com/blockchain-back-office-technologies Jekyll Generator to split up collections. Sun, 31 Dec 2023 07:09:33 +0000 https://omarish.com/split-collections-in-jekyll https://omarish.com/split-collections-in-jekyll A simple framework to be more productive with Redux and Typescript. Sun, 31 Dec 2023 07:09:33 +0000 https://omarish.com/productive-redux https://omarish.com/productive-redux Guaranteed way to get better at writing code. Sun, 31 Dec 2023 07:09:32 +0000 https://omarish.com/how-to-level-up-and-write-better-code https://omarish.com/how-to-level-up-and-write-better-code Why would someone make a clock with four hands? Sun, 31 Dec 2023 07:09:32 +0000 https://omarish.com/four-handed-clock https://omarish.com/four-handed-clock What we still might need to figure out to pass the Turing Test. Sun, 31 Dec 2023 07:09:32 +0000 https://omarish.com/loose-notes-on-conversational-frameworks https://omarish.com/loose-notes-on-conversational-frameworks Everything I learned about eng recruiting in 2018. Sun, 31 Dec 2023 07:09:31 +0000 https://omarish.com/engineering-recruiting-lessons-learned https://omarish.com/engineering-recruiting-lessons-learned Fun with shorthand method signatures in Ruby. Sun, 31 Dec 2023 07:09:31 +0000 https://omarish.com/ruby-keyword-arguments-and-defaults https://omarish.com/ruby-keyword-arguments-and-defaults A powerful construct to parse class Meta blocks. Sun, 31 Dec 2023 07:09:30 +0000 https://omarish.com/parsing-meta-blocks-using-python-s-dataclass https://omarish.com/parsing-meta-blocks-using-python-s-dataclass Here's a small pandoc extension to convert Markdown to Slack formatting. Sun, 31 Dec 2023 07:09:30 +0000 https://omarish.com/convert-markdown-to-slack-formatting https://omarish.com/convert-markdown-to-slack-formatting Difficult problems can be easy to solve if you catch them early enough. Sun, 31 Dec 2023 07:09:30 +0000 https://omarish.com/wells-fidelity-dealing-with-culture-problems https://omarish.com/wells-fidelity-dealing-with-culture-problems I'm joining Coinbase as part of the Earn.com acquisition. Sun, 31 Dec 2023 07:09:29 +0000 https://omarish.com/joining-coinbase https://omarish.com/joining-coinbase A quick shortcut to make a new post in Jekyll. Sun, 31 Dec 2023 07:09:29 +0000 https://omarish.com/shortcut-to-creating-a-new-post-in-jekyll https://omarish.com/shortcut-to-creating-a-new-post-in-jekyll An interesting use case of a blockchain can be used in a business. Sun, 31 Dec 2023 07:09:29 +0000 https://omarish.com/upgrade-online-lending-and-blockchain https://omarish.com/upgrade-online-lending-and-blockchain We need a way for authors to share work without huge reputational risk. Sun, 31 Dec 2023 07:09:28 +0000 https://omarish.com/anonymous-publishing https://omarish.com/anonymous-publishing Fun with SAT Solvers, SQL, and the NY Times Crossword. Sun, 31 Dec 2023 07:09:28 +0000 https://omarish.com/solving-the-nyt-crossword-with-a-sql-query https://omarish.com/solving-the-nyt-crossword-with-a-sql-query Introducing a Python Package for handling business logic in web apps. Sun, 31 Dec 2023 07:09:27 +0000 https://omarish.com/mutations-a-python-package-for-business-logic https://omarish.com/mutations-a-python-package-for-business-logic Reflecting on my time at the Recurse Center. Sun, 31 Dec 2023 07:09:27 +0000 https://omarish.com/recurse-center-return-statement https://omarish.com/recurse-center-return-statement Sun, 31 Dec 2023 07:09:38 +0000 https://omarish.com/cybersecurity-parametrics https://omarish.com/cybersecurity-parametrics Assorted books / papers I've enjoyed reading over the past weeks. Sun, 31 Dec 2023 07:09:27 +0000 https://omarish.com/sixteen-books-papers https://omarish.com/sixteen-books-papers We counter existential dread with optimistic nihilism. Sun, 31 Dec 2023 07:09:26 +0000 https://omarish.com/optimistic-nihilism https://omarish.com/optimistic-nihilism My solution to one of Facebook's early engineering challenges. Sun, 31 Dec 2023 07:09:26 +0000 https://omarish.com/traversing-graphs-and-finding-cats https://omarish.com/traversing-graphs-and-finding-cats I'm joining the Recurse Center's Fall batch in New York City. Sun, 31 Dec 2023 07:09:25 +0000 https://omarish.com/joining-the-recurse-center https://omarish.com/joining-the-recurse-center How remapping Command+T on my mac helped me focus on what's important. Sun, 31 Dec 2023 07:09:26 +0000 https://omarish.com/disabling-command-t-and-the-productivity-tax https://omarish.com/disabling-command-t-and-the-productivity-tax You might have heard the old joke about two hikers getting ready for a walk into the woods. Sun, 31 Dec 2023 07:09:25 +0000 https://omarish.com/exsupero-ursus https://omarish.com/exsupero-ursus A few helpful design principles I've learned over the years. Sun, 31 Dec 2023 07:09:24 +0000 https://omarish.com/helpful-design-resources https://omarish.com/helpful-design-resources You came in and gave us sugar cubes! Sun, 31 Dec 2023 07:09:24 +0000 https://omarish.com/nootrobox-on-shark-tank https://omarish.com/nootrobox-on-shark-tank Learn about the stack we've used to deliver over $750M in investments. Sun, 31 Dec 2023 07:09:24 +0000 https://omarish.com/lendinghome-s-technology-stack https://omarish.com/lendinghome-s-technology-stack A good reminder that we all use relatively similar tools. Sun, 31 Dec 2023 07:09:23 +0000 https://omarish.com/we-all-press-the-same-upload-button https://omarish.com/we-all-press-the-same-upload-button A guide to tweaking one of the most popular databases. Sun, 31 Dec 2023 07:09:23 +0000 https://omarish.com/practical-guide-to-postgresql-optimizations https://omarish.com/practical-guide-to-postgresql-optimizations Thinking about mobile apps that direct you to something better instead of reminding you what not to do. Sun, 31 Dec 2023 07:09:23 +0000 https://omarish.com/changing-and-augmenting-habits https://omarish.com/changing-and-augmenting-habits We're working on much bigger failures right now. And I'm not kidding. Sun, 31 Dec 2023 07:09:22 +0000 https://omarish.com/how-jeff-bezos-thinks-about-failure https://omarish.com/how-jeff-bezos-thinks-about-failure Three things I've been thinking about recently. Sun, 31 Dec 2023 07:09:22 +0000 https://omarish.com/ideas-automatic-thoughts-cybersecurity-insurance-and-books https://omarish.com/ideas-automatic-thoughts-cybersecurity-insurance-and-books Room for Improvement. Sun, 31 Dec 2023 07:09:21 +0000 https://omarish.com/new-technologies-and-their-megapolitical-consequences https://omarish.com/new-technologies-and-their-megapolitical-consequences I used to think these two things were the same. Sun, 31 Dec 2023 07:09:21 +0000 https://omarish.com/conflating-focus-with-intensity https://omarish.com/conflating-focus-with-intensity If a person trained for a marathon but didn't write about it on the internet, did they ever train? Sun, 31 Dec 2023 07:09:21 +0000 https://omarish.com/lessons-from-marathon-training https://omarish.com/lessons-from-marathon-training Chase, Chance, and Creativity: The Lucky Art of Novelty Sun, 31 Dec 2023 07:09:20 +0000 https://omarish.com/four-kinds-of-luck https://omarish.com/four-kinds-of-luck It feels like the left and right hemispheres of my brain are becoming great waltz partners. Sun, 31 Dec 2023 07:09:20 +0000 https://omarish.com/the-link-between-mindfulness-and-systems-thinking https://omarish.com/the-link-between-mindfulness-and-systems-thinking It's indeed possible to do incredible work while also iterating rapidly. Sun, 31 Dec 2023 07:09:20 +0000 https://omarish.com/the-work-we-do-debt-and-equity https://omarish.com/the-work-we-do-debt-and-equity I'm joining LendingHome to work on the retail investing platform! Some thoughts on the decision and space. Sun, 31 Dec 2023 07:09:19 +0000 https://omarish.com/joining-lendinghome https://omarish.com/joining-lendinghome Why I'm excited about chat interfaces Sun, 31 Dec 2023 07:09:19 +0000 https://omarish.com/invisible-apps https://omarish.com/invisible-apps God, grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference. Sun, 31 Dec 2023 07:09:18 +0000 https://omarish.com/focusing-on-things-you-can-control https://omarish.com/focusing-on-things-you-can-control Migrating Data to a Columnar Database Sun, 31 Dec 2023 07:09:39 +0000 https://omarish.com/tips-on-moving-data-from-postgresql-to-vertica https://omarish.com/tips-on-moving-data-from-postgresql-to-vertica Fifty Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life Sun, 31 Dec 2023 07:09:18 +0000 https://omarish.com/five-ways-to-reach-near-light-speed-travel https://omarish.com/five-ways-to-reach-near-light-speed-travel Sun, 31 Dec 2023 07:09:18 +0000 https://omarish.com/tweetable-a-plugin-to-make-any-text-easily-tweetable https://omarish.com/tweetable-a-plugin-to-make-any-text-easily-tweetable Better late than never: when the technical cofounder begins to understand the value of a non-technical cofounder. Sun, 31 Dec 2023 07:09:17 +0000 https://omarish.com/the-understanding-your-market-multiplier https://omarish.com/the-understanding-your-market-multiplier As long as you remain in control of what you're doing, you'll be A-O-K. Sun, 31 Dec 2023 07:09:17 +0000 https://omarish.com/staying-focused-at-150-mph https://omarish.com/staying-focused-at-150-mph That great feeling with python decorators start to make intuitive sense. Sun, 31 Dec 2023 07:09:17 +0000 https://omarish.com/thin-python-cache-decorator https://omarish.com/thin-python-cache-decorator This seems interesting. Sun, 31 Dec 2023 07:09:16 +0000 https://omarish.com/google-circles https://omarish.com/google-circles It took me a lot longer than I'd like to admit to figure this one out. Sun, 31 Dec 2023 07:09:16 +0000 https://omarish.com/custom-firefox-profile-in-selenium-rc2 https://omarish.com/custom-firefox-profile-in-selenium-rc2 chmod g+r Sun, 31 Dec 2023 07:09:16 +0000 https://omarish.com/django-restrict-view-access-by-group-membership https://omarish.com/django-restrict-view-access-by-group-membership Top-Down Metrics Sun, 31 Dec 2023 07:09:15 +0000 https://omarish.com/predicting-earnings-via-satellite-imagery https://omarish.com/predicting-earnings-via-satellite-imagery Balancing "Make Something People Want" and "Scratch the Itch" Sun, 31 Dec 2023 07:09:15 +0000 https://omarish.com/entrepreneurship-advice https://omarish.com/entrepreneurship-advice I am new. Sun, 31 Dec 2023 07:09:15 +0000 https://omarish.com/kuitman-thru-you https://omarish.com/kuitman-thru-you If pure self–seeking is so pervasive, it’s because those who seek only for themselves imagine that they are the whole world. Sun, 31 Dec 2023 07:09:14 +0000 https://omarish.com/life-value-and-the-paradoxes-of-risk https://omarish.com/life-value-and-the-paradoxes-of-risk "...self-deprecating humor, unpretentious demeanor, and unaggressive style in conversation" Sun, 31 Dec 2023 07:09:14 +0000 https://omarish.com/ben-franklin-s-insight https://omarish.com/ben-franklin-s-insight Didn't rush for a frat, started a frat music website instead. Sun, 31 Dec 2023 07:09:13 +0000 https://omarish.com/fratmusic-com-in-the-cav-daily https://omarish.com/fratmusic-com-in-the-cav-daily First, you must decide exactly what it is you want to accomplish. Most people never do that in their entire lives. Sun, 31 Dec 2023 07:09:13 +0000 https://omarish.com/helpful-advice-on-setting-goals https://omarish.com/helpful-advice-on-setting-goals Do not let your fire go out, spark by irreplaceable spark Sun, 31 Dec 2023 07:09:13 +0000 https://omarish.com/the-world-you-desired-can-be-won https://omarish.com/the-world-you-desired-can-be-won