Open source Datadog alternatives

feat: BFLD — Beamforming Feedback Layer for Detection (privacy-gated WiFi sensing)

“## Summary Add a new crate `wifi-densepose-bfld` that turns raw 802.11 Beamforming Feedback Information (BFI) into bounded, privacy-gated sensing outputs. BFLD detects when RF data crosses from "ambient sensing" into "identity record" and structurally prevents…”

⭐ Tutorial: ESP32-S3 CSI Pipeline End-to-End Setup (ADR-018)

“## ESP32-S3 CSI Pipeline: Step-by-Step Tutorial (current as of v0.6.6-esp32) > ⚠️ **Updated 2026-05-21** — original tutorial referenced paths and commands that no longer match the repo. Updated for the current state of [ruvnet/RuView]( (note: the repo was renamed from…”

Show HN: SigNoz – open-source alternative to DataDog, NewRelic

“Hi, I want to love this product. This will be the 3rd or 4th time I have looked at the docs to figure out basic setup. Each time I look into this. I look to see how it can report CPU/Memory/Disk of the systems at large. When I read, all I find on open telemetry and SigNoz is how…”

Show HN: SigNoz – open-source alternative to DataDog, NewRelic

“We recommend users to run SigNoz in a separate k8s cluster/VM. In this way, even if your applications servers/clusters get overloaded, your observability stack (SigNoz) will still be running seamlessly. Many of our users use SigNoz in a similar fashion.”

Beszel: Lightweight server monitoring hub with historical data, Docker stats

“Nice project. The Docker stats view looks clean. Been using fivenines.io for similar stuff, handles Proxmox and QEMU VMs without needing agents on each one, which saves some setup time. Beszel looks solid for the self-hosted crowd though.”

Jaeger – A Distributed Tracing System

“@necubi I do not disagree with you about the value of tail-based sampling. It has been an item on Jaeger roadmap from day one, but never of high enough priority to implement it. We're planning to do a POC by the end of this year. Jaeger's agent-based architecture was…”

Jaeger – A Distributed Tracing System

“Jaeger is just the concrete implementation. OpenTracing is what you should think about using when writing your application. That said, you could benefit from automatic instrumentation via OpenTracing framework integration libraries (JAX-RS, Servlets, ...). Or use the Java Agent.…”

Show HN: Witr – Explain why a process is running on your Linux system

“`witr` is trying to be a bit different. Here are few use cases to consider: - When a process started. - Which ports a process is using. - Which user started it. - From which directory it started. - env flag to list all the variables attached to the process. - json flag to use it…”

Show HN: Witr – Explain why a process is running on your Linux system

“Just to update, witr is currently available on brew and AUR. deb, rpm and apk packages are also available in the release, and can be run directly via nix without installation.”

Using AZs can eat up your budget – From Prometheus to VictoriaMetrics

“VictoriaMetrics does support occasional updates/deletes (e.g. you may need it for GDPR compliance).”

Big Prometheus: Thanos, Cortex, M3DB and VictoriaMetrics at Scale

“Let me explain my experience with tsdb selection. in 2018 we understood that we need something for long term storage. Selection was between thanos, elasticsearch and m3db. M3db looks promising but after reading issues and docs i found i have to test it like database not like a…”

Zipkin - distributed tracing by Twitter (aka Google Dapper)

“We came up with the name by putting all kinds of words into Google translate and making sure they weren't trademarked. Zipkin seemed short and sweet and wasn't widely used before.”

Vitamin D and Omega-3 have a larger effect on depression than antidepressants

“>Well, I don't think you'll be able to avoid testicle atrophy even if it minimizes it I only take 250iu twice a week. 6 months in I can't see any atrophy. Some people take it every other day. This hormone HCG is very interesting. In fact it is what many urine pregnancy tests…”

Vitamin D and Omega-3 have a larger effect on depression than antidepressants

“> Some cancerous tumors produce this hormone; therefore, elevated levels measured when the patient is not pregnant may lead to a diagnosis of cancer and, if high enough, of paraneoplastic syndromes. It is unknown however whether this production is a contributing cause or an…”

Reduced driver functionality (not yet supported on this kernel version)

“**ISSUE DESCRIPTION HAS BEEN REWRITTEN BY MAINTAINER @jxy-s:** **For the latest kernel support, ensure you are on the latest Canary build of System Informer:** `Help > Check for updates > Canary > Check` This issue is for requesting support for new Windows kernel versions. The…”

windows 10 reports trojan in process hacker [Fixed]

“Just checked for update on process hacker and windows told me this: ![ph-trojan](”

[BUG]: example/FinancialAnalysisSystem.ipynb cannot import name 'Execution' from 'agentneo'

“ImportError Traceback (most recent call last) Cell In[1], [line 6](vscode-notebook-cell:?execution_count=1&line=6) [4](vscode-notebook-cell:?execution_count=1&line=4) import openai [5](vscode-notebook-cell:?execution_count=1&line=5) from dotenv import load_dotenv ---->…”

Add Example Notebooks

“Add Example notebooks for different agentic applications”

Introducing Thanos: Prometheus at Scale

“We use Thanos to provide the observability features (monitoring in particular) to Workers (i.e. user processes we run on our Cloud) that perform the simulation. You can have multiple Workers collaborating on a simulation of the economics or ecology that export monitoring…”

Introducing Thanos: Prometheus at Scale

“Oh yes I already caught the demo. So Thanos was your solution for building the energy economy and the larger ecosystem? The energy simulation is what really struck me as a fundamentally challenging element in a game. Maybe largely because in the first world we don't really have…”

Computer Science from the Bottom Up (2016)

“Most students approach courses as a form of top-down search with a cache for items they see often. It is generally difficult to get them to reason about subjects from the bottom up. A smaller proportion of students approach courses from the bottom-up (10-20%?) - they tend to…”

Computer Science from the Bottom Up (2016)

“When I was in college I was very interested in learning computer fundamentals bottom-up, but I had some pripr experience programming a high level language. With that prior knowledge everything made sense to me. Maybe if I didn't have this prior knowledge back then the classes…”

Qwen3-VL can scan two-hour videos and pinpoint nearly every detail

“I didn't understand what is meant by "pinpoint nearly every detail". The article is titled with that but then firehoses a bunch of technical details. The github spells it out much better:”

Qwen3-VL can scan two-hour videos and pinpoint nearly every detail

“so, a great politician once said: "the internet is for p0rn" - and if we accept this, what will this thing pinpoint in p0rn videos? :-D LOL”

Florence Nightingale saved people with her grasp of numbers

“For those, like me, who find the writing style somewhat annoying, this is the part of the article that relates directly to the title: > Imagine the situation Florence Nightingale confronted in the Crimea. Everyone knew that, in a war, soldiers get shot. Everyone knew that people…”

Florence Nightingale saved people with her grasp of numbers

“Interesting that despite this being an Australian speech reported on an Australian site, there is no mention of Nightingale's role in the development of nursing in Australia, at the request of the great Henry Parkes. Here's his granddaughter (herself a nursing educator) on the…”

Evaluating AI SRE Agents in Production (OpenSRE) – Evaluation

“off late, we are being consulted for what's a good AI SRE agent and just like how one would say "it depends" , we are trying to write and explain what exactly adoption depends on , some params we rate it on - actionability and control safety, - RCA quality, - observability…”

Benchmark opensre+LLM vs LLM-alone (Cloudopsbench)

“## What this is Run opensre+LLM against the Cloud-OpsBench test suite — honestly and reproducibly — and publish the results. This issue is the **measurement**: build and run the benchmark, and report what it shows. Product changes that come out of the results are tracked…”

Kubeshark: The API Traffic Viewer for Kubernetes

“Kubeshark (formerly Mizu) is an observability and monitoring tool that captures all the network traffic inside a Kubernetes cluster, including ingress, egress and across containers and pods. Kubeshark can even capture and display the encrypted (TLS) traffic using various Linux…”

Wheels for free-threaded Python now available for psutil

“Wow, long time no see. psutil is a great project and I do have some future plans involving it.”

Detect memory leaks of C extensions with psutil and psleak

“Hey, thank you so much for all your hard work on psutil, it is my goto import! And this looks like a really interesting development you have created to add to the available tools for detecting those tricky memory leaks. I have done some work in this space as well such as how to…”