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Tools like Claude Code and Codex have completely reshaped how software engineering is done. This new tooling allows for much faster development and iteration, but it's important to keep the code maintainable and scalable to make sure the project can continue evolving over the long term. A template project with an initial structure using all of the technologies described here is available on GitHub: https://github.com/MartinXPN/nextjs-firebase-mui-starter When working on a startup, the speed of iteration is key. The requirements change quickly, features are added daily, and code gets modified rapidly. In those conditions, picking technologies that enable fast iteration, while ensuring your users get the best experience possible, is crucial. During the last four years or so, we have experimented with many modern technologies while building Profound Academy . So, in this blog post, I'd like to present the whole tech stack that enables building quickly, while having a highly maintainable codebase, scalable infrastructure, and a great user experience. We'll cover everything from Authentication to UI, we'll talk about the backend, hosting, testing, and much more! AI Agents, Skills, and MCP servers AI Agents enable quick iteration and rapid improvement, including bug fixes, the addition of new features, and performance improvements. Yet, it's important to keep the code maintainable for the long run. AI tools make it really easy to overengineer things and add thousands of lines of code to a project. It's important to resist the urge to solve problems that don't exist yet, and keep things simple (both in terms of the code, the infrastructure, and the user experience). Even in the Agentic Software Development Era, having a small and simple setup helps. Agents coordinate better, features are added faster, bugs are fixed more easily, and the code is maintainable by humans, too. So, we have chosen to take a balanced/nuanced approach to how we use AI Agents when it comes to worki

Commodore's Call Back 8020 is a phone “where the customer is not the product."

With a retro look and T9 texting, the Commodore Callback 8020 smart flip phone taps into the nostalgic yearning for simpler days. It can run Spotify and Uber, but Instagram is blocked.

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Disclaimer: Please read the full post before commenting. Hey everyone! If you do not know me, my...

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Stack Overflow has announced Stack Overflow for Agents, a beta API-first knowledge exchange aimed at AI coding agents rather than human developers. The service is presented as a way to close what the company calls the Ephemeral Intelligence Gap, where agents repeatedly rediscover the same fixes and patterns in isolation instead of sharing them through a common memory. By Matt Saunders

Every food delivery app has the same promise: you tap a button, food shows up at your door. Testing...

Respond.io, one of Malaysia startups to watch, uses AI agents to handle high volumes of customer inquiries and charges per convo, not per seat.

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I wanted to see how far an autonomous coding agent could get unattended. The constraint that makes this hard isn't code generation — it's that each session starts with zero memory of the last. So the design problem is state, not prompting. Setup A cron-scheduled task fires hourly, 11pm–7am (~8 runs). Each run is a fresh agent session. No shared context, no carryover. State lives entirely on disk: the working tree, the git history, and two files — BUILD_SPEC.md (the immutable goal/architecture) and PROGRESS.md (an append-only decision + status log). The run loop Every session does the same thing: Read BUILD_SPEC.md, then PROGRESS.md, then git log --oneline. Reconstruct "where are we" from the files themselves (the code is the source of truth, not the narrative). Do one unit of work. Commit. Append to PROGRESS.md: what changed, why (chosen X over Y because Z), and the exact next step. Commit granularity = checkpoint granularity. Worst case on an interrupted session is losing one unit, and the next run re-derives it. The "why" lines matter as much as the diffs — without them a later session re-litigates settled decisions. Guardrails The agent was allowed to build, test, and commit locally. It was explicitly not allowed to deploy, push to a remote, or touch secrets — those get written into PROGRESS.md as "needs human" items instead. This boundary is what makes unattended runs safe to leave alone. What came out A working full-stack monorepo: a pure TS scheduling engine (with property tests), multi-tenant auth, a Drizzle/Postgres schema, server-side re-validation, and publish/share/export flows. Across the runs it cleared its own stale git lock, and one session caught and fixed an off-by-one in a labeling layer that spanned five files. The takeaway The leverage wasn't the model writing code. It was designing a process where progress is durable across total context loss — externalize state, checkpoint constantly, log decisions not just actions, and fence off irreversible o

Last year I was on a team that pushed 40 million events per day through Kafka. We had consumer lag alerts, rebalancing incidents, and a whole runbook for when the broker got behind. I understood how to operate Kafka. But I did not understand how Kafka works. So I built a tiny one. No dependencies. No Zookeeper. No JVM. Just Python and the core ideas. Here is what I learned. The Three Things Kafka Actually Does People say "Kafka is a message queue." That is not quite right. Kafka is a distributed commit log . It has three jobs: Accept writes from producers and append them to a log Let consumers read from any offset in that log Remember where each consumer group is up to That third one is the thing that makes Kafka different from a traditional queue. A queue forgets a message once it is consumed. Kafka remembers. You can replay. You can have 10 different consumer groups reading the same topic at different speeds. The code to implement this is smaller than you think. brokelite: A Message Broker in 120 Lines import threading import time from collections import defaultdict from typing import Dict , List , Tuple class Partition : """ Append-only log for one partition of a topic. """ def __init__ ( self ): self . _log : List [ Tuple [ int , bytes ]] = [] # (offset, message) self . _lock = threading . Lock () self . _next_offset = 0 def append ( self , message : bytes ) -> int : with self . _lock : offset = self . _next_offset self . _log . append (( offset , message )) self . _next_offset += 1 return offset def read_from ( self , offset : int , max_count : int = 100 ) -> List [ Tuple [ int , bytes ]]: with self . _lock : return [ ( off , msg ) for off , msg in self . _log if off >= offset ][: max_count ] def __len__ ( self ): return self . _next_offset class Topic : """ A topic is just N partitions. """ def __init__ ( self , name : str , num_partitions : int = 3 ): self . name = name self . partitions = [ Partition () for _ in range ( num_partitions )] def route ( self , k

The problem IAM wildcards and public S3 buckets keep slipping through Terraform code review. Tools like Checkov and tfsec exist but they live in CI, require config files, and developers ignore the output because it's not where they're working. What I built TerraWatch is a GitHub App that scans every pull request that touches .tf files automatically. If it finds a security issue it blocks the merge and posts the exact code fix as a PR comment. The developer sees something like this in their PR: ⚠️ PUBLIC_S3_BUCKET - main.tf (Line 6) Severity: HIGH Risk: S3 bucket allows public read access. Fix: acl = "public-read" acl = "private" block_public_acls = true restrict_public_buckets = true They copy the fix, push, and the merge unblocks automatically. How it's different No YAML, no CI config - installs in 2 minutes via GitHub App Fixes are hardcoded diffs, not AI generated Nothing auto-applied - you review every fix No Checkov dependency - own lightweight rules engine Only reads changed .tf files in the PR, never your full codebase 29 rules covering S3 public access, IAM wildcards, open ports (SSH/RDP/MySQL/Postgres), unencrypted EBS/RDS, public databases, hardcoded secrets, EKS public endpoints, CloudTrail disabled, IMDSv1, and more. Try it Free during beta - terrawatch.dev Also launching on Product Hunt today if you want to show some support!

description: While most people chase political bets, these traders are dominating daily temperature...

description: Weather markets on Polymarket have become one of the hottest and most consistent...

While you're manually checking if YES + NO = 1 , quantitative systems are solving massive constraint satisfaction problems across thousands of correlated markets in milliseconds. The Hidden Reality of Prediction Market Arbitrage You see a market where YES is trading at $0.62 and NO at $0.33. You think: There's $0.05 of arbitrage here . You're right. What you don't see is that by the time you place both orders, professional systems have already: Scanned 17,000+ conditions Detected dozens of correlated mispricings Calculated optimal position sizes (with fees & slippage) Executed everything in parallel Moved on to the next opportunity Between April 2024 and April 2025, quantitative traders extracted $39,688,585 in guaranteed arbitrage profits from Polymarket. The top individual wallet made $2,009,631.76 across 4,049 trades — an average of $496 guaranteed profit per trade . This wasn't gambling. This was mathematics. Why Simple "YES + NO = 1" Checks Fail Most retail traders stop at basic price sum checks. That's not enough. Markets are logically dependent. Example: "Will Trump win Pennsylvania?" → YES: $0.48 "Will Republicans win Pennsylvania by 5+ points?" → YES: $0.32 If the second outcome happens, the first must be true. These dependencies create arbitrage opportunities that simple addition cannot detect. This is known as the marginal polytope problem — projecting prices onto the set of arbitrage-free probability distributions. The Scale of the Computational Challenge For any event with n binary conditions, there are 2ⁿ possible outcome combinations. 2024 U.S. elections: 305 markets → tens of thousands of pairs 2010 NCAA tournament: 63 games → 2⁶³ ≈ 9.2 quintillion combinations Brute force is impossible. Smart systems use constraints instead. Real example : Duke vs Cornell basketball market 7 possible win counts per team → 14 conditions. Instead of checking 16,384 combinations, 3 linear constraints were enough. Research found that 41% of 17,218 conditions showed sing

Every FreeRTOS project I've worked on has the same problem. You have a sensor task that reads temperature. You have a UI task that needs to display it. So you create a QueueHandle_t, pass it to both tasks at init, call xQueueSend on one side and xQueueReceive on the other. Fine. Then you add a WiFi task that also needs temperature. You add another queue. Then a logging task. Another queue. Soon your app_init() is a mess of queue handles being passed around, and changing one task means touching everything it's connected to. On bare metal it's the same story in a different shape — a dozen global flags in main: if (flag_sensor) ... if (flag_button) ... if (flag_timer) ..., each one added as the project grows, none of them easy to trace back to where they're set. On embedded Linux it's pointers — modules holding direct references to each other, so a change in one ripples everywhere. I wanted one solution that works across all three without rewriting the dispatch logic every time. embedmq collapses it to 3 functions: embedmq_register(q, "sensor.temp", on_temp, NULL); // subscriber embedmq_post(q, "sensor.temp", &data, sizeof(data)); // producer, any thread/task No shared queue handles. No global flags. No direct pointers between modules. The library handles the ring buffer, the mutex, and the semaphore wakeup. Same API, three platforms: Linux: pthread + POSIX semaphore, zero external dependencies FreeRTOS: counting semaphore + xTaskCreate, static mode for zero heap after init Bare-metal: C11 atomic spinlock, drive dispatch with embedmq_poll() from your superloop FreeRTOS PAL is verified on the POSIX simulator in CI — not real hardware yet, I'll be honest about that. GitHub: https://github.com/w4ysonch/embedmq Happy to answer questions about the design or the FreeRTOS porting details.

Is FAANG Becoming MANGO in the AI Era? For years, FAANG was the gold standard for innovation and engineering excellence. If you were a developer, working at companies like Facebook (Meta), Apple, Amazon, Netflix, or Google was often seen as the ultimate career goal. But the AI revolution is changing the conversation. Today, some of the most influential companies aren't just building products—they're building intelligence. The spotlight is increasingly shifting toward AI-native organizations such as OpenAI , Anthropic , NVIDIA , and others that are shaping the future of software. The Bigger Shift This isn't really about replacing FAANG with another acronym. It's about a fundamental shift in technology: Search → Answers Automation → Agents Software → Intelligence Features → Capabilities As developers, we're entering an era where understanding AI is becoming as important as understanding frameworks, databases, and system design. What This Means for Engineers The most valuable engineers of the next decade will likely combine: Strong software engineering fundamentals AI-assisted development skills Prompt engineering LLM and agent integration AI-powered product thinking The goal isn't to compete with AI. The goal is to learn how to build with it. Read the Full Article This post was inspired by a thought-provoking article that explores the FAANG-to-MANGO idea in much greater detail. 👉 Read the complete article here: https://www.saurabhsharma.dev/blogs/mangos-vs-faang-ai-era/ What do you think? Are we witnessing the rise of a new generation of AI-first companies, or will traditional tech giants continue to lead the next wave of innovation?

A story about an AI content moderation system that flagged 347 posts since launch — and what...

Stacking indicators doesn't make you smarter — it makes your bot dumber. You've seen the guides....