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Today we're introducing the new Obsidian Community site, the new developer dashboard, and a roadmap of things to come for plugins and themes.
Obsidian@obsdmd
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Aloha_Al
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Aloha_Al retweetledi
Aloha_Al retweetledi
9 database types developers should know:
1) 𝗥𝗲𝗹𝗮𝘁𝗶𝗼𝗻𝗮𝗹
↳ Stores structured data in tables with predefined schemas & SQL queries.
2) 𝗞𝗲𝘆-𝗩𝗮𝗹𝘂𝗲
↳ Stores simple key-value pairs for ultra-fast lookups & caching.
3) 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁
↳ Stores data as JSON-like documents with flexible, nested structures.
PS: Get my free 142-page System Design Handbook when you join my free weekly newsletter. Join 33,000+ engineers → lucode.co/system-design-…
4) 𝗪𝗶𝗱𝗲-𝗖𝗼𝗹𝘂𝗺𝗻
↳ Stores data in flexible column families for large-scale distributed workloads.
5) 𝗧𝗶𝗺𝗲-𝗦𝗲𝗿𝗶𝗲𝘀
↳ Stores time-stamped data for metrics, logs, & event tracking.
6) 𝗚𝗿𝗮𝗽𝗵
↳ Stores relationships between entities to query connected data efficiently.
7) 𝗩𝗲𝗰𝘁𝗼𝗿
↳ Stores embeddings to enable similarity search & AI-powered retrieval.
8) 𝗖𝗼𝗹𝘂𝗺𝗻𝗮𝗿
↳ Stores data by columns instead of rows to optimize analytical queries.
9) 𝗜𝗺𝗺𝘂𝘁𝗮𝗯𝗹𝗲 𝗟𝗲𝗱𝗴𝗲𝗿
↳ Stores tamper-proof records where data cannot be modified or deleted.
Remember, there's no one-size-fits-all database anymore. Most systems don’t use just one database, they combine multiple types for different workloads.
Full breakdown (with visuals) here → lucode.co/database-types…
What else would you add?
♻️ Repost to help others learn databases.
➕ Follow me ( Nikki Siapno ) to improve at system design.
Nikki Siapno@NikkiSiapno
Git branching strategies: Do you know the differences? 𝗙𝗲𝗮𝘁𝘂𝗿𝗲 𝗯𝗿𝗮𝗻𝗰𝗵𝗶𝗻𝗴 keeps each feature in its own branch, isolated from the main branch; making pull requests easier to review. Once complete, the feature is merged back into main. 𝗚𝗶𝘁𝗳𝗹𝗼𝘄 uses two long-lived branches: dev for development and main for production. Features are built in separate branches, then merged into dev. Releases are prepared in dedicated branches before merging into production. 𝗚𝗶𝘁𝗟𝗮𝗯 𝗳𝗹𝗼𝘄 combines feature branching with environment-based deployment workflows. Changes move through environments like staging before reaching production, making it well-suited for CI/CD and staged releases. 𝗚𝗶𝘁𝗛𝘂𝗯 𝗳𝗹𝗼𝘄 simplifies things. The main branch is always deployable. Developers create short-lived branches, open pull requests, and merge once approved, often triggering deployment. 𝗧𝗿𝘂𝗻𝗸-𝗯𝗮𝘀𝗲𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 minimizes branching. Changes are merged into main frequently, supported by strong automated testing, CI pipelines, and feature flags to maintain stability. Each strategy solves the same core problem: How do teams move fast without breaking the system? But most issues don’t come from the branching model, they come from inside the branches: unclear changes, weak reviews, missing context. That’s what CodeRabbit Agent helps solve. A single agent inside your workflow that follows work end-to-end. It pulls your org’s context into one place and helps teams investigate, plan, and execute work directly from Slack. So instead of losing context between branches, your work stays connected as it evolves. 𝗧𝗿𝘆 𝗖𝗼𝗱𝗲𝗥𝗮𝗯𝗯𝗶𝘁 𝗔𝗴𝗲𝗻𝘁 𝗳𝗼𝗿 𝗳𝗿𝗲𝗲 → lucode.co/coderabbit-age… What else would you add? —— ♻️ Repost to help others learn and grow. 🙏 Thanks to @coderabbitai for sponsoring this post. ➕ Follow me ( Nikki Siapno ) to improve at system design.
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Aloha_Al retweetledi
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JUST IN: Google $GOOGL in talks with Elon Musk's SpaceX to launch data centers in space.
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🔥 UPDATE: Kraken and Franklin Templeton are partnering to build tokenized investment products on-chain.
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Just learned a new word:
Eremition
(eh-ruh-mish-un)
The act of gradually fading from the lives of others, not out of malice, but a desire for solitude or renewal.
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Aloha_Al retweetledi
Aloha_Al retweetledi
Aloha_Al retweetledi
Aloha_Al retweetledi
Your phone impairs cognitive performance even when you’re not using it.
Turn it off and put it in another room.
demitria@wannabfisherman
I don't think enough people realize we're about five years out from people going to rehab for phones
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After 72 hours without a smartphone the brain shows changes in reward and craving circuits that resembles withdrawal.
demitria@wannabfisherman
I don't think enough people realize we're about five years out from people going to rehab for phones
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Aloha_Al retweetledi
Aloha_Al retweetledi
The biggest IPO so far in 2026 launches in 4 days.
$25B $CBRS brands itself an $NVDA killer.
It claims its huge, ultra fast AI chips are 21x faster than B200s.
But it's a parlay trade. $CBRS depends on a $20B OpenAI contract.
For $CBRS to win, OpenAI must win as well.
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A groundbreaking medical study revealed that aging may be transmitted through the bloodstream via a protein called HMGB1. When researchers blocked this protein in animal tests, they observed remarkable results: damaged tissues began to repair themselves, and some age-related decline was reversed.
This discovery suggests that aging is not simply an inevitable process of cell breakdown but may be influenced by specific molecular signals. If these signals can be controlled, aging could be slowed — or even partially reversed.
Such treatments could revolutionize medicine, offering new ways to fight diseases like Alzheimer’s, arthritis, and organ failure, all of which are tied to aging. However, researchers caution that human trials are still far away.
The study fuels hope that one day aging itself might be treated as a medical condition, reshaping human health and longevity.
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This fan wanted Wemby to sign his jersey but Wemby had something better in mind 🥹
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Aloha_Al retweetledi
Aloha_Al retweetledi
I’m today years old when I came to know that crocodiles can climb trees🤯
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