🛠️ All DevTools

[Other] SimpleIDE

[Database] Show HN: MCP Server for PostgreSQL Monitoring/Operations (MCP-PostgreSQL-Ops) MCP Server for PostgreSQL Monitoring&#x2F;Operations (MCP-PostgreSQL-Ops)<p>&lt;Examples Queries&gt; &quot;Check PostgreSQL server status&quot; &quot;Check PostgreSQL server version and connection status&quot; &quot;Verify if extensions are installed&quot; &quot;Show current active connection count&quot; &quot;Show the shared_buffers configuration&quot; &quot;Show PostgreSQL configuration parameter for shared_buffers&quot; &quot;Find all memory-related configuration settings&quot; &quot;Show logging configuration parameters&quot; &quot;Display connection-related settings&quot; &quot;Find all timeout configurations&quot; &quot;Show all PostgreSQL configuration parameters&quot; &quot;Show top 10 slowest queries&quot; &quot;Show top 20 slowest queries&quot; &quot;Analyze slow queries in specific database&quot; &quot;Find unused indexes&quot; &quot;Analyze recent query activity&quot; &quot;Check index efficiency in specific database&quot; &quot;Check database sizes&quot; &quot;Find largest tables&quot; &quot;Show tables that need VACUUM&quot; &quot;Check table sizes in specific database schema&quot; &quot;List tables in specific database&quot; &quot;Check maintenance status in specific database&quot;

[Other] Show HN: PlutoPrint – Generate PDFs and PNGs from HTML with Python Hi everyone, I built PlutoPrint because I needed a simple way to generate beautiful PDFs and images directly from HTML with Python. Most of the tools I tried felt heavy, tricky to set up, or produced results that didn’t look great, so I wanted something lightweight, modern, and fast. PlutoPrint is built on top of PlutoBook’s rendering engine, which is designed for paged media, and then wrapped with a Python API that makes it easy to turn HTML or XML into crisp PDFs and PNGs. I’ve used it for things like invoices, reports, tickets, and even snapshots, and it can also integrate with Matplotlib to render charts directly into documents.<p>I’d be glad to hear what you think. If you’ve ever had to wrestle with generating PDFs or images from HTML, I hope this feels like a smoother option. Feedback, ideas, or even just impressions are all very welcome, and I’d love to learn how PlutoPrint could be more useful for you.

[Monitoring/Observability] Show HN: Okapi – a metrics engine based on open data formats Hi All I wanted to share an early preview of Okapi an in-memory metrics engine that also integrates with existing datalakes. Modern software systems produce a mammoth amount of telemetry. While we can discuss whether or not this is necessary, we can all agree that it happens.<p>Most metrics engines today use proprietary formats to store data and don’t use disaggregated storage and compute. Okapi changes that by leveraging open data formats and integrating with existing data lakes. This makes it possible to use standard OLAP tools like Snowflake, Databricks, DuckDB or even Jupyter &#x2F; Polars to run analysis workflows (such as anomaly detection) while avoiding vendor lock-in in two ways - you can bring your own workflows and have a swappable compute engine. Disaggregation also reduces Ops burden of maintaining your own storage and the compute engine can be scaled up and down on demand.<p>Not all data can reside in a data-lake&#x2F;object store though - this doesn’t work for recent data. To ease realtime queries Okapi first writes all metrics data to an in memory store and reads on recent data are served from this store. Metrics are rolled up as they arrive which helps ease memory pressure. Metrics are held in-memory for a configurable retention period after which it gets shipped out to object storage&#x2F;datalake (currently only Parquet export is supported). This allows fast reads on recent data while offloading query-processing for older data. On benchmarks queries on in-memory data finish in under a millisecond while having write throughput of ~280k samples per second. On a real deployment, there’d be network delays so YMMV.<p>Okapi it is still early — feedback, critiques, and contributions welcome. Cheers !

[Other] Show HN: Anchor Relay – A faster, easier way to get Let's Encrypt certificates From the cryptic terminal commands to the innumerable ways to shoot yourself in the foot, I always struggled to use TLS certificates. I love how much easier (and cheaper) Let&#x27;s Encrypt made it to get certificates, but there are still plenty of things to struggle with.<p>That&#x27;s why we built Relay: a free, browser-based tool that streamlines the ACME workflow, especially for tricky setups like homelabs. Relay acts as a secure intermediary between your ACME client and public certificate authorities like Let&#x27;s Encrypt.<p>Some ways Relay provides a better experience:<p><pre><code> - really fast, streamlined certificates in minutes, with any ACME client - one-time upfront DNS delegation without inbound traffic or DNS credentials sprinkled everywhere - clear insights into the whole ACME process and renewal reminders </code></pre> Try Relay now: <a href="https:&#x2F;&#x2F;anchor.dev&#x2F;relay" rel="nofollow">https:&#x2F;&#x2F;anchor.dev&#x2F;relay</a><p>Or read our blog post: <a href="https:&#x2F;&#x2F;anchor.dev&#x2F;blog&#x2F;lets-get-your-homelab-https-certified" rel="nofollow">https:&#x2F;&#x2F;anchor.dev&#x2F;blog&#x2F;lets-get-your-homelab-https-certifie...</a><p>Please give it a try (it only takes a couple minutes) and let me know what you think.

[Other] Show HN: Luminal – Open-source, search-based GPU compiler Hi HN, I’m Joe. My friends Matthew, Jake and I are building Luminal (<a href="https:&#x2F;&#x2F;luminalai.com&#x2F;">https:&#x2F;&#x2F;luminalai.com&#x2F;</a>), a GPU compiler for automatically generating fast GPU kernels for AI models. It uses search-based compilation to achieve high performance.<p>We take high level model code, like you&#x27;d have in PyTorch, and generate very fast GPU code. We do that without using LLMs or AI - rather, we pose it as a search problem. Our compiler builds a search space, generates millions of possible kernels, and then searches through it to minimize runtime.<p>You can try out a demo in `demos&#x2F;matmul` on mac to see how Luminal takes a naive operation, represented in our IR of 12 simple operations, and compiles it to an optimized, tensor-core enabled Metal kernel. Here’s a video showing how: <a href="https:&#x2F;&#x2F;youtu.be&#x2F;P2oNR8zxSAA" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;P2oNR8zxSAA</a><p>Our approach differs significantly from traditional ML libraries in that we ahead-of-time compile everything, generate a large search space of logically-equivalent kernels, and search through it to find the fastest kernels. This allows us to leverage the Bitter Lesson to discover complex optimizations like Flash Attention entirely automatically without needing manual heuristics. The best rule is no rule, the best heuristic is no heuristic, just search everything.<p>We’re working on bringing CUDA support up to parity with Metal, adding more flexibility to the search space, adding full-model examples (like Llama), and adding very exotic hardware backends.<p>We aim to radically simplify the ML ecosystem while improving performance and hardware utilization. Please check out our repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;luminal-ai&#x2F;luminal" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;luminal-ai&#x2F;luminal</a> and I’d love to hear your thoughts!

[Other] Improvements to OCaml code editing: the basics of a refactor engine

[Other] A benchmark for LLMs on complicated tasks in the terminal

[DevOps] The Self-hosted AI Starter Kit is an open-source template that quickly sets up a local AI environment. Curated by n8n, it provides essential tools for creating secure, self-hosted AI workflows.

[Other] Bitwarden client apps (web, browser extension, desktop, and cli).

[CLI Tool] Show HN: Claude Code workflow: PRDs → GitHub Issues → parallel execution I built a lightweight project management workflow to keep AI-driven development organized.<p>The problem was that context kept disappearing between tasks. With multiple Claude agents running in parallel, I’d lose track of specs, dependencies, and history. External PM tools didn’t help because syncing them with repos always created friction.<p>The solution was to treat GitHub Issues as the database. The &quot;system&quot; is ~50 bash scripts and markdown configs that:<p>- Brainstorm with you to create a markdown PRD, spins up an epic, and decomposes it into tasks and syncs them with GitHub issues - Track progress across parallel streams - Keep everything traceable back to the original spec - Run fast from the CLI (commands finish in seconds)<p>We’ve been using it internally for a few months and it’s cut our shipping time roughly in half. Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;automazeio&#x2F;ccpm" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;automazeio&#x2F;ccpm</a><p>It’s still early and rough around the edges, but has worked well for us. I’d love feedback from others experimenting with GitHub-centric project management or AI-driven workflows.

[Other] Tidewave Web: in-browser coding agent for Rails and Phoenix

[Other] A self-hosted IMAP/SMTP middleware designed for developers RustMailer is a self-hosted, open-source email API platform for syncing IMAP, sending SMTP, and integrating via webhooks. It supports multi-account sync, programmable filters with VRL, NATS delivery, gRPC & OpenAPI, plus a built-in web client.

[Other] Professional online json tool | format, validate & convert Professional JSON formatter, validator, and converter. Format, validate, minify JSON with real-time processing. Convert to XML, CSV, YAML. Free online tool with dark mode, tree view, and advanced features.

[Other] The best AI platform for young developers. We provide the best AI platform, from curated datasets to a serverless inference platform, for young developers who want to build the next chapter of the internet.

[Other] Build saas faster and monetize Your NextJS boilerplate to build your business and start earning faster.

[Other] Discover Smart AI Tools to Boost Creativity and Productivity Introducing AI Tools Eosin, your all-in-one platform offering the best free AI-powered tools to transform developer, or business owner, Check it out now: https://aitools-eosin.vercel.app/

[Other] Run web3 code on ethereum nodes Shared Hoster for Ethereum Nodes & PaaS for Web3 App Docker deployments. Low latency RPC access, high throughput for MEV, Web3 Gaming, and Data Analysis

[Monitoring/Observability] Add color to your logs Splash's CLI transforms boring plain text into beautiful color coded logs. Splash automatically detects many common log formats like Apache, Syslog, Nginx and many more. Splash can highlight stack traces from Go, Java, Python and Javascript.

[Other] Show HN: Because I Kanban Just wanted to share my latest project Taskstax, it&#x27;s just a simple Kanban kind of trello clone, built mainly for the learns, but it works too so it&#x27;s online.<p>Simple Kanban boards, easy login that takes you straight to it.<p>It uses socket.io for data xfer after login which was fun to setup and also makes it work well.<p>Totally free, any feedback would be cool or if you wanted some info on the tech just ask.