2025-06-08 20:19:00
Hi all,
I recently becomes a heavy LLM user in coding, It helps me write a lot of helper and tedious script which will take me days or even weeks now I can do in 1⁄10 of time. It is great when you know how to do something but dont’ want to sit down and write it. Especially on UI. So I plan to share more about LLM/AI to help all of us.
On other note, Mozilla is shutting down Pocket on July 8, 2025. In spirit of self-hosted, I had switch to linkding. I wrote this simple script to import Pocket archive to linkding. The script was written by Gemini btw.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
Customer Data You Can Depend On
We know you run your business on data, so you better be able to depend on it.
Twilio Segment was purpose-built so that you don’t have to worry about your data. Forget the data chaos, dissolve the silos between teams and tools, and bring your data together with ease.
So that you can spend more time innovating and less time integrating.
Talk to sales and get a guided tour of Twilio Segment tailored to your business.
People say many things about entropy: entropy increases with time, entropy is disorder, entropy increases with energy, entropy determines the arrow of time, etc.. But I have no idea what entropy is, and from what I find, neither do most other people. This is the introduction I wish I had when first told about entropy, so hopefully you find it helpful. My goal is that by the end of this long post we will have a rigorous and intuitive understanding of those statements, and in particular, why the universe looks different when moving forward through time versus when traveling backward through time.
The Cinema Industry is using its own standards for creating and distributing movies in a secure way. The DCI (Digital Cinema Initiatives) specification defines everything from file formats and encryption to the projection systems itself.
The specification itself is publicly available but relies on various IEEE (Institute of Electrical and Electronics Engineers) and SMPTE (Society of Motion Picture and Television Engineers) standards, which have to be purchased.
At scale of OpenAI, I imagine they might shard PostgreSQL. But they utilize an unsharded architecture with one writer and multiple readers, demonstrating that PostgreSQL can scale gracefully under massive read loads.
Email is very well distributed where you cannot get lock down by a provider. As long asyou own domain, you can move email anywhere. In email world, generally SMTP is for sending email and IMAP is for receiving mail. In this article, we focus on IMAPv4.
In this section, I talk about why VPCs were invented and how they work. This is critical to understand because almost everything you do in AWS will happen inside of VPC. If you don’t understand VPCs, it will be difficult to understand any of the other networking concepts.
Printing on unix-like operating systems like Linux or macOS is usually done through the CUPS daemon. CUPS is responsible for handling printer configuration, scheduling print jobs and actually talking to the printer over the wire. In this article we discuss a printer system for ticket using FGL. And they implement a CUPS driver to take the rastered pixel data and ouput FGL.
A deeper look at how PostgreSQL logical replication works, from WAL internals and logical decoding to streaming protocols and replica lag. If you’ve ever wondered what’s happening under the hood, this post connects the dots.
Think of this post as your field guide to a new way of building software. By the time you finish reading, you’ll understand not just the how but the why behind AI-assisted development that actually works.
diffing dataset is very useful in data engineering. incremental syncing, detect drift etc. how can we create a tool that could efficiently diff large SQL datasets across different databases and servers. This article build such as a tool with: Divide, Hash, And Conquer
Instead of renting the GPU we can pay up-front cost to build a server with GPU. This post can serve as a simple foundation into this process with sourcing parts and assbler thing together.
Every backend dev will hit file limit at some point and we run something like ulimit -n 65000 to fix it. But how we debug it, how we find out how many file it openning? and what is these file descriptor.
Warpstream control plane is written in Go, which has excellent built-in support for debugging application memory issues with pprof. We’ve used pprof hundreds of times in the past to debug performance issues, and usually memory leaks are particularly easy to spot. But in this case, this isn’t something that pprof could help with.
Curated collection of system prompts for top AI tools. Perfect for AI agent builders and prompt engineers. Incuding: ChatGPT, Claude, Perplexity, Manus, Claude-Code, Loveable, v0, Grok, same new, windsurf, notion, and MetaAI.
A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.
Customer Data You Can Depend On
We know you run your business on data, so you better be able to depend on it.
Twilio Segment was purpose-built so that you don’t have to worry about your data. Forget the data chaos, dissolve the silos between teams and tools, and bring your data together with ease.
So that you can spend more time innovating and less time integrating.
Talk to sales and get a guided tour of Twilio Segment tailored to your business.
Use Ruby DSL to let AI Model call function inside your Ruby app
A Ruby implementation of a Model Context Protocol (MCP) server for Rails projects. This server allows LLMs (Large Language Models) to interact with Rails projects
A Go implementation of the Model Context Protocol (MCP), enabling seamless integration between LLM applications and external data sources and tools.
Go bindings for the Chafa terminal graphics library. Render high quality images on the terminal without CGO or external dependencies.
offers a modern, Pythonic interface to FFmpeg, providing extensive support for complex filters with detailed typing and documentation.
Online webgl photo editor with effects, filters and cropping
Browser’s End-user Automation CLI Hub. Potentialize All Tasks Regarding Online Life.
442 open source icons in 2 styles, made for interfaces. MIT license
Build by the fame depesz, it tells you what you got between 2 PG version.
A simple list of all PostgreSQL parameter.
airplay to an ios device, use your iphone as an airplay receiver
Python tool for converting files and office documents to Markdown.
Effortless LLM extraction from documents
Postgres MCP Pro is an open source Model Context Protocol (MCP) server built to support you and your AI agents throughout the entire development process—from initial coding, through testing and deployment, and to production tuning and maintenance.
Postgres extension and service for automated failover and high-availability
🔥 ~6x faster, stricter, configurable, extensible, and beautiful drop-in replacement for golint
Advanced PostgreSQL & Pgbouncer Metrics Exporter for Prometheus
2025-03-31 20:19:00
Hi all,
So this week, Github CodeQL leaked their token; the token was only publicly exposed for about 2 seconds, but that’s enough. Then, we had Malware found on npm infecting local packages with a reverse shell. And an atop heap issue. The world truly fell apart last week, no joke. That’s why it’s helpful to be paranoid whenever we run any piece of software on our CI, on our dependencies—always vet them yourself.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
An in-depth exploration of the evolution of PostgreSQL’s buffer manager locking mechanisms over three decades, highlighting key design decisions and their impact on performance and concurrency.
A guide offering practical advice on crafting technical blog posts that effectively engage and inform developer audiences, emphasizing clarity, structure, and relevance.
An overview of identity tokens, detailing their role in authentication and authorization processes, and providing best practices for implementing secure and efficient access control mechanisms.
A technical analysis by Google’s Project Zero team on the NSO Group’s BLASTPASS exploit, which targeted Apple’s iMessage using malicious WebP images to achieve zero-click remote code execution.
A concise reference guide summarizing key algorithms related to visual data processing, offering quick insights into their applications and implementations.
If you have some old Raspberry Pi hardware lying around, this could be a great hobby project.
An examination of the relationship between MySQL’s transaction throughput and the filesystem’s synchronization operations, discussing how fsync frequency impacts database performance.
An article discussing techniques to enhance shell history search functionality, including the integration of tools like fzf for more efficient command retrieval and improved productivity.
A discussion on transformative PostgreSQL design patterns, such as using UUID primary keys, implementing timestamp fields, enforcing strict foreign key constraints, utilizing schemas for organization, and employing enum tables for data integrity.
A comprehensive guide addressing PostgreSQL’s transaction isolation anomalies, providing practical examples and strategies to understand and mitigate issues like dirty reads, lost updates, and phantom reads.
Single sign-on for SSH is a dream. No longer dealing with keys, editing ~/authorized_keys files, or modifying LDAP or PAM configurations. Easy to revoke and offboard developers.
An introduction to the Model Context Protocol (MCP), explaining its purpose, functionality, and how it can streamline development processes by providing contextual model information.
A fast approximate nearest neighbor search library for Go
A simple Physics engine in GoLang
A Rust implementation of a fast audio fingerprinting system inspired by Shazam, for audio recognition and identification. It focuses on speed, efficiency and simplicity
A ledger implementation in PostgreSQL
A tool by AMD to run LLM Agents on Ryzen AI PCs in Minutes
Generative View Synthesis with Diffusion Models
a foundation model for SVG generation that transforms vectorization into a code generation task. Using a vision-language modeling architecture, StarVector processes both visual and textual inputs to produce high-quality SVG code with remarkable precision.
The slightly more awesome standard unix password manager for teams
an Apache-Licensed, secure, fast and easy to use Apache Iceberg REST Catalog written in Rust. Apache Iceberg is a project that allow us to run SQL query on a set of file(CSV, Parquet, JSON) directly from storage such as S3.
This package provides a simple way to generate unique, symmetric identicons based on an input string (e.g., an email address or username). It uses an MD5 hash to create a deterministic pattern and color scheme, then mirrors the design for a visually appealing avatar.
2025-03-25 20:19:00
Hi all,
Last week, NextJS has a new security vulnerability, CVE-2025-29927 that allow by pass middleware auth checking by setting a header to trick it into thinking this is an internal request and skip the auth middleware check. If you’re hosted on Vercel there is no action to take, but if you run the vercel server in your infra, you should update.
Another one for k8s, if you’re running ingress-nginx, you should update this patch. The attack require the ability to have a pod already running inside K8S network, such as sharing namespace with other users, or exposing admission controller webhook to internet. So if your cluster is dedicated to you, and not doing stuff like host network or expose admission controller service, you can buy sometime for the upgrade.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
A classic tale of Linux horror. You’re SSH’d into a machine, you make one wrong move, and suddenly your system is broken. This post walks through how to recover from this self-inflicted nightmare.
RIGHT JOIN is an esoteric feature in the SQL language, and hardly ever seen in the real world, because almost every RIGHT JOIN can just be expressed as an equivalent LEFT JOIN. There is, however, one place in the SQL language where RIGHT JOIN is surprisingly ubiquitous and today we learn about it.
An approachable introduction to the magic of zero-knowledge proofs—how they let you prove something without revealing the details. Perfect for anyone curious about cryptography without diving into hardcore math.
This one’s a bit outside the usual programming realm, but trust me—it’s fascinating. A deep dive into how solar panels actually work, the engineering behind them, and why understanding electricity at this level is surprisingly useful.
Syncing data is one of those things that sounds easy until you try to build it. This post walks through a synchronization engine design that’s both simple and powerful.
A deep dive into how macOS can unintentionally leak sensitive data like passwords, thanks to clipboard behavior and debugging tools. A must-read for anyone who cares about security.
Ever tried putting text over an image and ended up with weird background overlaps? This post explains why that happens and how to fix it. If you do anything with CSS, you’ll want to bookmark this one.
BPF is like a superpower for peeking into Linux. Whether you care about performance monitoring, security, or just love cool system hacks, this is a fantastic read.
A nostalgic yet technical look at how null pointer dereferences have plagued macOS over the years. Great for those who love debugging deep OS issues.
AI-powered recommendations are everywhere, but how do they really work? This post explores how LLMs are changing search and recommendation engines for the better.
If you’re a Rubyist curious about parallelism, this is for you. A practical look at Ruby’s Ractors and how they enable truly parallel execution without locks.
A Game Boy emulator written in Rust.
A Rack web server written in Ruby from scratch.
an HTML5 Canvas JavaScript framework that extends the 2d context by enabling canvas interactivity for desktop and mobile applications.
Need to run untrusted code safely? This sandboxing tool might be your new best friend.
A physics engine in Go that makes simulating motion, collisions, and forces as simple as possible.
A blazing-fast plotting library for massive datasets, using modern GPU rendering to keep things smooth.
Parsing gigabytes of JSON per second. Zig port of simdjson with fundamental features.
A Model Context Protocol (MCP) server that provides browser automation capabilities using Playwright. This server enables LLMs to interact with web pages through structured accessibility snapshots, bypassing the need for screenshots or visually-tuned models.
Powerful devtools for Ruby on Rails. Inspired by the Laravel Debugbar.
an open source agent that monitors your database, finds root causes of issues, and suggests fixes and improvements. It’s like having a new SRE hire in your team, one with extensive experience in Postgres.
Free Online version of pgFormatter a PostgreSQL SQL syntax beautifier (no line limit here up to 100000 characters). This SQL formatter/beautifier supports keywords from SQL-92, SQL-99, SQL-2003, SQL-2008, SQL-2011 and PostgreSQL specifics keywords. May
A database schema management tool that works like Terraform—diff, apply, and keep your schema in check.
Define your API once in a simple tsp file, then generate OpenAPI, gRPC, client code, and docs automatically.
A fast, memory-safe web server powered by Rust. Similar to Caddy or Nginx but written in Rust.
2025-03-18 20:19:00
Hi all,
This week the github action tj-actions/changed-files are compromise and steeling credential of github action env. I had always found the concept of trusting randome github action is scary. Especially github make the action appear under the global namespace /marketplace/actions make it seems trust worth. Had github adopt a <user-org>/name probably more people will aware. I recommend for any non official github action, fork it to your own org or account and review source code manually.
Second thing, if you has been using WHOIS to find out domain owner or registra info, that is going to change. ICANN is Launching RDAP; Sunsetting WHOIS and a CLI to replace whois too.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
Lots of coding AIs have cool X demos on greenfield apps. But the day-to-day of a pro software engineer working on a team looks…a little different from vibe coding. Enter Augment Code. The first developer AI built for teams and large codebases, Augment works on codebases of millions of lines of code and thousands of files, bringing full codebase context to every keystroke. Customers like Datastax, Observe, Kong, and Lemonade trust Augment because it’s fast, high quality, and secure. Even better - you don’t have to switch your IDE - Augment works in VS Code, JetBrains, and even Vim. Augment is free to try and never trains on code without consent. Start building for free today.
Non-volatile storage is a cornerstone of modern computer systems. Every modern photo, email, bank balance, medical record, and other critical pieces of data are kept on digital storage devices, often replicated many times over for added durability. we’re going to cover the history, functionality, and performance of non-volatile storage devices over the history of computing, all using fun and interactive visual elements.
Google release the full details of EntrySign, the AMD Zen microcode signature validation vulnerability which they initially disclosed on Feb 2025. This vulnerability allows an adversary with local administrator privileges (ring 0 from outside a VM) to load malicious microcode patches. We have demonstrated the ability to craft arbitrary malicious microcode patches on Zen 1 through Zen 4 CPUs
Exploring an unpopular git bundle-uri that can help speed up Git by pre-populate git local object cache from https instead of fetching from git server.
WebGPU is a modern graphics API designed to provide high-performance graphics and computation capabilities across different platforms, including web browsers, desktops, and mobile devices. It is intended to be a successor to the WebGL API, offering more advanced features, better performance, and greater flexibility for developers
CSS is evolving realy fast. This is a useful feature used to cover by CSS pre-processor like SCSS or LESS.
The question everyone have an answer for. The OP share with us an interesting concept: visual patterns of code, specifically the ones that make their brain hurt!
Any distributed system you will hear the term Raft or Paxos. Some expert consider Paxos is super simple, some say it’s the most complicated. In this post, the OP modeling Paxos with FizzBee, a design specification language and model checker to specify distributed systems at a much higher level of abstraction than a programming language for system analysis and design. So we will learn 2 things in this post.
Building on a previous post on sorting algorithms, I implemented the same algorithms using CUDA to explore performance improvements through parallel computing. The goal is to see how we can leverage the power of parallel computing to speed up our sorting algorithms. I went for a NVIDIA recruiting event some days ago, that was a great event and it motivated me to try to rewrite the sorting algorithms using CUDA.
“PostgreSQL scales” - we have all heard this phrase over and over again. However, the question is: What does this actually mean? Does it mean 1 million rows? Or maybe even 1 billion rows? So, on a rainy weekend, I decided to do a little experiment to figure out if it is possible to squeeze 1 trillion rows (= 1000 billion rows) into my local personal computer
As an engineer we’re all curious how a compilers to made. The bad news is there is no single resource to grasp all of that. The good news are all the resource widely available for us to get started.
Binary Security found the undocumented APIs for Azure API Connections. In this post we examine the inner workings of the Connections allowing us to escalate privileges and read secrets in backend resources for services ranging from Key Vaults, Storage Blobs, Defender ATP, to Enterprise Jira and SalesForce servers.
A delightful Ruby way to work with AI. No configuration madness, no complex callbacks, no handler hell – just beautiful, expressive Ruby code.
a powerful, web-based image editor built with React and TypeScript. It provides a modern, intuitive interface for quick image edits and filters, optimized for both desktop and mobile devices.
If you ever need a short-cut like a spotlight search for your app. You would want this
Go HardWare discovery/inspection library
a robust Rust framework for building interactive REPL (Read-Eval-Print Loop) applications and custom shells. It provides a flexible, type-safe foundation with built-in terminal UI capabilities using ratatui.
An agentic framework with extensible tools for complex reasoning
The cryptography-based networking stack for building unstoppable networks with LoRa, Packet Radio, WiFi and everything in between.
Prevent merging of malicious code in pull requests
The agents.json Specification is an open specification that formally describes contracts for API and agent interactions, built on top of the OpenAPI standar
a Python package designed to facilitate the creation of engaging short videos or social media clips. It leverages a variety of external services and libraries to streamline the process of generating, processing, and uploading short content.
Elevate your designs with our curated collection of modern background patterns. Preview, customize, and implement with just a few clicks.
an open source, community-driven, native audio turn detection model. Hugging Face model is available
an open-source, fast, reactive, in-memory database optimized for modern hardware.
Horizontal scaling for PostgreSQL.
A blazing-fast KV store written in pure Golang without any dependencies with native pub-sub support, engineered for high-frequency, contention-heavy workloads
Toolkit for linearizing PDFs for LLM datasets/training
2025-03-10 20:19:00
Hi all,
In the wave of ByBit exchange being hack for 1.6billion, and the hack is very sophisciated, exploit developer access key to change an s3 bucket. The attack start by having the developer run some untrusted docker compose with privileged: true I’ll include a few more tools in security, vulnerable scan, and supply chain attack.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
Lots of coding AIs have cool X demos on greenfield apps. But the day-to-day of a pro software engineer working on a team looks…a little different from vibe coding. Enter Augment Code. The first developer AI built for teams and large codebases, Augment works on codebases of millions of lines of code and thousands of files, bringing full codebase context to every keystroke. Customers like Datastax, Observe, Kong, and Lemonade trust Augment because it’s fast, high quality, and secure. Even better - you don’t have to switch your IDE - Augment works in VS Code, JetBrains, and even Vim. Augment is free to try and never trains on code without consent. Start building for free today.
Imagine someone could turn your laptop, smartphone, or even your gaming console into a tracking device without your knowledge. Our research team discovered a way this can happen through Apple’s Find My network The Find My network uses over a billion Apple devices worldwide. We found a security problem that lets hackers use this system to track almost any device with Bluetooth capabilities - not just Apple products. We call this attack “nRootTag.”
In this post, we’ll cover how to prevent ransomware and provide resources & code for 11 different ransomware prevention use cases to ensure preventative controls are in place to prevent against types of ransomware attacks targeting AWS S3.
The internet is insecure by default. Attackers can intercept and modify traffic, so we need a way to secure communication and verify the server’s identity. Encryption ensures data privacy, but without verification, hackers could impersonate a legitimate website, intercepting traffic while still using encryption. This is why TLS/SSL combines encryption with authentication.
When consuming Kafka in a consumer group, the offset each consumer has bit read the message and ack it is recorded by Kafka. When they crashed or restart, they can resume from the commited ack position. But what happen if a record has been processed by consumer but failed to send the ack, the app will consume the record again on restarting. How can we somehow do 2 thing: commit the offset and the result of operation somehow in a single atomic operation. Enter Kafka transactions allow.
We usually don’t include this tutorial style link but this one is really interesting to see. We will learn how transforms, perspective, and stacked grids can create a fully addressable 3D space and push the boundaries of what’s possible with pure CSS
In this tutorial, we learn how to create a simplified clone of the mobile game Crossy Road with React Three Fiber. The goal of the game is to move a character through an endless path of static and moving obstacles. We have to go around the trees and avoid getting hit by a car or a truck. We start with the basic setup: setting up the scene, camera, and lighting. We learn how to draw the player and the map’s trees, cars, and trucks. We cover how to animate the vehicles and add event handlers to move the player through the map. Finally, we add logic to detect collisions between the player and the cars.
A very command problem when we need to re-present a relationship in databsae such as family, friend. Can come in very handy to write a single SQL query to find relationship instead of building them from the app level
XOR is every where. We use them in Linux permission: umask, chmod. We use them in Cryptography. We will learn about their hardware implementation, about their usage and all kind of trick to use them efficiently.
Write up when following “Build a large language model from scratch” book.
Den has been running podcast for half a decade. He use WhistpeX, run it locally and build a workflow to transcibe his podcast to text. He shared with us the setup. I think local ai is really useful and worth to explorer the self hosted path. It is much easiser to self hosted than we think even
Go specific but come in very handy when working with Go app.
FastDOOM was a port of DOOM but it is 30% faster. On some complicated map, it’s even 48% faster. We will dive into the secret sauce of the technique that is used to optimized it. very low level thing like use the right assembly instruction to make code run in fewer instructions.
I recently tried to optimize convolutions using SIMD instructions, but what I thought would be a simple task ended up taking me days, with issue after issue popping up one after another. Some of them make sense in hindsight, but others were utterly baffling. While the specific examples are for direct convolution, these considerations apply to pretty much any code with a hot loop.
A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.
a library which enables viewing of and interaction with PDF documents in React and SolidJS apps. It’s build on top of Mozilla’s PDF.js, and utilises Zustand to provide a reactive store for the loaded documents.
I recently pickup Zig and I think this is going to replace Rust and C for me when I needed them. It has all the power of Rust while less restricted, and have power of C while being more friendly than C.
A tool to detect cell site simulators on an Orbic mobile hotspot
E164 international phone number normalizing, splitting, formatting.
Yet another Go REPL that works nicely. Featured with line editing, code completion, and more.
Prevent merging of malicious code in pull requests
If you ever need to keep postgres in-sync with another datawarehouse, or even another postgres, this is the way to go.
A text-to-speech (TTS) and Speech-to-Speech (STS) library built on Apple’s MLX framework, providing efficient speech synthesis on Apple Silicon
Idempotent schema management for MySQL, PostgreSQL, and more
An intelligent web vulnerability scanner agent powered by Large Language Models
The Most Advanced Client-Side Prototype Pollution Scanner
A truly Open Source MongoDB alternative
powerful tool designed to bring actionable insights for tasks such as security monitoring and threat hunting on Linux systems. Think of it as the Linux counterpart to Sysmon on Windows, tailored for comprehensive and precise event monitoring.
2025-03-04 20:19:00
Hi all,
Welcome to second issue of BetterDev. I’m lagging behind a few issues but catching up. There are many things happens with LLM/AI recently. I encourage to give these tools a try, on your own hardware.
As a reader of this newsletter, you probably has the itch to build some app all the time. My friend at lapa.ninja has been curating almost 7000 landing pages, all hand pick. So you can get the inspiration next time when you want to build a landing page or a dashboard for your app.
If you enjoy BetterDev, please spread the word by sharing it with your friends. And if you’d like to support my work, buying me a coffee would be much appreciated.
In this post, I’ll go through some of the perhaps obscure Git config settings that I have personally globally enabled and go into them to explain what they do and why they should probably be the default settings.
Do you want to be able to discover chromecast device on your network and broadcast arbitrary media to it? Sure, there is many tools to do it. But what is the protocol behind it. This is a 4 part series dive into that. We will learn the basic, the protocol, the casting server and gotcha.
A Minecraft clone from scratch with only modern OpenGL. No game engines or frameworks. Using Go so it’s very h igh level and easy to follow.
Switches, bridges, routers, load balancers, firewalls—these network boxes keep the internet running. Routing, blocking, mirroring, duplicating and deduplicating traffic in ways most people never think about. Without them, this document wouldn’t have reached you
We had been featuring this series in previos issue. In this part we will learn how to evaluate a SQL query. If you are interesting of understanding deep into your stack, these article provide great approach into learning and rebuilding them.
Sometimes you just want to know how fast your code can go, without benchmarking it. Sometimes you have benchmarked it and want to know how close you are to the maximum speed. Often you just need to know what the current limiting factor is, to guide your optimization decisions.
Scaling PostgreSQL successfully doesn’t always require a full team of DBAs and experts. The beauty of PostgreSQL is that solutions often lie within the database itself - by rethinking your data access patterns from first principles, you can solve many business problems at scale.
What do you do with your unclosed browser tabs? I find that they take up a lot of screen space. So this week I figured out how to run pong inside mine.
Implementing video streaming might be a pain for some cases, especially when we talk about memory management alongside scalability of the application. One common way is using HTTP Live Streaming Protocol where a single video could be broken down into smaller chunks and sent through multiple HTTP requests. But then we need to transcode video ahead of time. Can we stream MP4 file? has it playable asap instead of downloading whole video? Turn out we can thank to the modern browser support of byte “Rang: byte” header.
WireGuard is a very powerful VPN which support multiple topology and routing. Can come in very handy when you want to perform complex routing, especially in environment where you want to control egress. Give this a read to learn about these setups: Site Gateway as a Spoke, Internet Gateway as a Spoke, Chain of Hubs, Hub is Also a Site Gateway.
interning is a technique of storing only one copy of each unique piece of data in memory.Very common use in string so we don’t need to store the string multiple time. Imagine big JSON document with repeated field. In this post we look into a time series database and how interning help with different data type.
A tale into debugging a Java program to see why it use all 32 cores.
Micro event loop library to teach the basic concepts of python coroutines and how event loop libraries might be implemented
Python API for your car. Control the gas, brake, steering, and more. Read the speed, steering angle, and more.
Improve user session security in Ruby on Rails applications with database session storage
Bluesky text parser that outputs parsed text with rich text facets
Human-friendly regular expression builder with English-like syntax.
the JavaScript port of RE2, a regular expression engine that provides linear time matching
This is a native WebP encoder written entirely in Go, with no dependencies on libwebp or other external libraries. Designed for performance and efficiency, this encoder generates smaller files than the standard Go PNG encoder and is approximately 50% faster in execution
a Python tool that consolidates infrastructure assets and the relationships between them in an intuitive graph view powered by a Neo4j database.
A simple tool to stream your media to android TV or chromecast device.
A lightweight and customizable TypeScript library for rendering audio waveforms on HTML canvas. Create beautiful, interactive audio visualizations with ease.
Compare Rails-generated files with the ones in your repository
Open source Loom alternative. Beautiful, shareable screen recordings.
An AI web browsing framework focused on simplicity and extensibility.
Postgres read replica optimized for analytics. It consists of a single binary that seamlessly connects to a Postgres database, replicates the data in a compressed columnar format, and allows you to run complex queries using its Postgres-compatible analytical query engine.
PostgreSQL metrics monitor/dashboard
