Show HN: pg_grpc – Call gRPC services directly from PostgreSQL https://ift.tt/qvzCXYM

Show HN: pg_grpc – Call gRPC services directly from PostgreSQL https://ift.tt/XMWEcKJ April 14, 2026 at 12:50AM

Show HN: 15 yrs of Django in prod: patterns I keep using (agent skills) https://ift.tt/f0FaTcP

Show HN: 15 yrs of Django in prod: patterns I keep using (agent skills) https://ift.tt/umWRb9H April 13, 2026 at 10:16PM

Show HN: Rekal – Long-term memory for LLMs in a single SQLite file https://ift.tt/kNahWFX

Show HN: Rekal – Long-term memory for LLMs in a single SQLite file I got tired of repeating myself to my LLM every session. rekal is an MCP server that stores memories in SQLite and retrieves them with hybrid search (BM25 + vectors + recency decay). One file, local embeddings, no API keys. https://ift.tt/TGSsyj8 April 13, 2026 at 04:25AM

Show HN: Claudraband – Claude Code for the Power User https://ift.tt/qvPm9yA

Show HN: T4 – a versioned datastore with branching and time-travel (S3-backed) https://ift.tt/xDNasBV

Show HN: T4 – a versioned datastore with branching and time-travel (S3-backed) Hi HN, I built t4, a datastore that stores its WAL and snapshots in S3. Instead of traditional storage, it writes append-only segments to object storage and reconstructs state from checkpoints + WAL. A side effect of this model is that the database becomes naturally versioned: - you can restore any past state - branch from any point (with copy-on-write) - replay history I started this as an experiment to replace etcd in Kubernetes, but it’s evolving into a general-purpose versioned state store. Curious what people think about: - using object storage as the primary persistence layer - whether branching/time-travel is actually useful in practice https://ift.tt/S3mcvgj April 13, 2026 at 12:22AM

Show HN: A living Vancouver. Connor is walking dogs at the SPCA this morning https://ift.tt/csFKEgx

Show HN: A living Vancouver. Connor is walking dogs at the SPCA this morning I've spent most of my career in marketing, which for the last few years has meant building consumer personas for campaigns. I wanted to see if I could make these real, living in real neighborhoods, had real weather, real budgets, real Saturday lunches. I always wanted to build a world, not a segment. This is that. 140 people so far, split across Vancouver (100), San Francisco (20), and Tokyo (20). Each one is about 1,000 lines of profile — family, finances, daily schedule, health, worldview, media diet, the channels you'd actually reach them through and the ones that will explicitly never work on them. Demographics are census-grounded income, age, ethnicity, household composition follow normal distributions against StatsCan, ACS, and Japanese e-Stat data, so the panel is roughly representative of the city instead of representative of whatever's overrepresented in an LLM's training corpus. The specific details come from real stories. They live in real local time on a live map. Right now it's Saturday 11:32 AM in Vancouver. Connor Hughes, a 31-year-old software developer at Clio in Gastown, is on his SPCA volunteer shift, he walks shelter dogs at the Boundary Road location every other Saturday morning. Hassan Khoury is in the morning lunch rush with Tony at his Lebanese café — it's his busiest day of the week. Ahmad Noori is pulling Saturday overtime on a construction site. Jordan Whitehorse is on mid-shift at East Cafe on Hastings. Every day is unique, no two days repeat. A 3 AM job fetches live data: weather from Open-Meteo, grocery CPI from StatsCan food vectors, Metro Vancouver transit delays from Google Routes API against specific corridors, Vancouver gas prices, sunrise and sunset. Each persona has a modifier file that reacts to all of it. When Vancouver gas hits $1.85/L, Jaspreet the long-haul trucker's Coquihalla run to Calgary stops feeling worth it, his margins are thin, his mood takes a hit. When food CPI spikes, Gurinder at the Amazon warehouse stops buying the $9 Subway and brings roti from home. A health flare rolls probabilistically each morning which maybe nothing, maybe Tanya's six month old had a rough night, maybe Frank's back is acting up. The days stack up and get remembered. Every persona has a journal, today's entry in a markdown file, a week of them compressed into a "dream" of ~30 lines that keeps the shape without the texture, a month compressed into ~15 lines. It's their journal. I'm not writing it; the simulation is. Click any persona to open their detail, or hit "Talk to [name]" to have a conversation and they run on Claude Haiku with their full profile and recent diary entries as context. Not a product, not a startup, just a thing I've been quietly working on. They feel, in a way I didn't expect, like my fully grown kids. Happy to answer questions. https://brasilia-phi.vercel.app April 12, 2026 at 01:42AM

Show HN: We scanned uscis.gov for third-party trackers. The results are jarring https://ift.tt/FXehWsU

Show HN: We scanned uscis.gov for third-party trackers. The results are jarring https://ift.tt/8vgjlKP April 11, 2026 at 08:43PM

Show HN: OpenDescent, decentralised encrypted messenger, no servers, no accounts https://ift.tt/YJX29uN

Show HN: OpenDescent, decentralised encrypted messenger, no servers, no accounts https://ift.tt/3Xrn4ge April 11, 2026 at 11:33PM

Show HN: FluidCAD – Parametric CAD with JavaScript https://ift.tt/w4qkXYN

Show HN: FluidCAD – Parametric CAD with JavaScript Hello HN users, This is a CAD by code project I have been working on on my free time for more than year now. I built it with 3 goals in mind: - It should be familiar to CAD designers who have used other programs. Same workflow, same terminology. - Reduce the mental effort required to create models as much as possible. This is achieved by: - Provide live rendering and visual guidance as you type. - Allow the user to reference existing edges/faces on the scene instead of having to calculate everything. - Provide interactive mouse helpers for features that are hard to write by code: Only 3 interactive modes for now: Edge trimming, Sketch region extrude, Bezier curve drawing. - Implicit coding whenever possible: e.g: There are sensible defaults for most parameters. The program will automatically fuse intersecting objects together so you do not have to worry about what object needs to be fused with what. - It should be reasonably fast: The scene objects are cached and only the updated objects are re-computed. I think I have achieved these goals to a good extent. The program is still in early stages and there are many features I want to add, rewrite but I think it is already usable for simple models. https://fluidcad.io/ April 11, 2026 at 01:39AM

Show HN: I run AI background removal in the browser–no upload,no server https://ift.tt/4TpcuBX

Show HN: I run AI background removal in the browser–no upload,no server RMBG-1.4 + SAM running client-side via ONNX Runtime WASM. ~2s on laptop, works on mobile. Your image never leaves the browser. Built this as part of allplix.com. 19yo student in France, solo project. Happy to talk about the WASM pipeline or the pain of running ML models in a browser tab. https://ift.tt/AsePEp2 April 11, 2026 at 01:00AM

Show HN: Dynamic Map of YouTube Channels https://ift.tt/08vBwrF

Show HN: Dynamic Map of YouTube Channels https://www.ytmap.xyz/ April 11, 2026 at 12:25AM

Show HN: Figma for Coding Agents https://ift.tt/FJaVyAu

Show HN: Figma for Coding Agents Feels a bit like Figma, but for coding agents. Instead of going back and forth with prompts, you give the agent a DESIGN.md that defines the design system up front, and it generally sticks to it when generating UI. Google Stitch seems to be moving in this direction as a standard, so we put together a small collection of DESIGN.md files based on popular web sites. https://getdesign.md April 10, 2026 at 10:20PM

Show HN: I built a Cargo-like build tool for C/C++ https://ift.tt/Z6cShWF

Show HN: I built a Cargo-like build tool for C/C++ I love C and C++, but setting up projects can sometimes be a pain. Every time I wanted to start something new I'd spend the first hour writing CMakeLists.txt, figuring out find_package, copying boilerplate from my last project, and googling why my library isn't linking. By the time the project was actually set up I'd lost all momentum. So, I built Craft - a lightweight build and workflow tool for C and C++. Instead of writing CMake, your project configuration goes in a simple craft.toml: [project] name = "my_app" version = "0.1.0" language = "c" c_standard = 99 [build] type = "executable" Run craft build and Craft generates the CMakeLists.txt automatically and builds your project. Want to add dependencies? That's just a simple command: craft add --git https://ift.tt/ynBjPso --links raylib craft add --path ../my_library craft add sfml Craft will clone the dependency, regenerate the CMake, and rebuild your project for you. Other Craft features: craft init - adopt an existing C/C++ project into Craft or initialize an empty directory. craft template - save any project structure as a template to be initialized later. craft gen - generate header and source files with starter boilerplate code. craft upgrade - keeps itself up to date. CMakeLists.extra.cmake for anything that Craft does not yet handle. Cross platform - macOS, Linux, Windows. It is still early (I just got it to v1.0.0) but I am excited to be able to share it and keep improving it. Would love feedback. Please also feel free to make pull requests if you want to help with development! https://ift.tt/a7lY2sJ April 9, 2026 at 11:04PM