Radar MJCR sobre SaaS, IA, WebDEV e negócios digitais.
Uma curadoria automática de tendências, notícias e discussões úteis para quem cria produtos digitais, vende serviços online ou acompanha inteligência artificial aplicada aos negócios.
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O que vale acompanhar agora.
Os cards abaixo levam para as fontes originais. A MJCR organiza a leitura para facilitar pesquisa, repertório e tomada de decisão.
AI Shopping Agents Are Here. Who Controls the Customer?
AI shopping agents are not interesting because they can click “Buy” for us. They are interesting because they can decide which products we see before we ever reach a store. For developers and technical founders, that ch…
Idempotent Retries for LLM Calls: Stop Paying Twice for One Request
Disclosure: this post is written by the team building OROO Blue, an AI API gateway. The techniques below are vendor-neutral. LLM requests are slow compared to most API calls, which makes them unusually likely to hit tim…
Make a QR Code for Wi-Fi in the Browser: Seven Content Types and Their Fields
I work on OnePassApps, the team behind app.onepassapps.com. This is about our own QR Code Maker, and every field and default below was read off the live app on 10 November 2026. Most QR generators ask for a URL and hand…
Claude Fable 5.2: Faster, Cheaper, and Still Hard to Justify
Someone posted a screenshot of Anthropic's own benchmark chart on r/ClaudeAI and asked the only question that mattered. "So you move from Fable Xhigh to Max, and it thinks longer, costs more, and performs worse?" That c…
Show DEV: Invoice Toolkit — local-first billing documents without signup
I built Invoice Toolkit for freelancers, contractors, and small businesses that need a practical invoice or estimate without creating another account. The core tools are free and work directly in the browser. A user can…
Microsoft 365 Copilot Business Price per User: Cost and a 30-Day Pilot Plan
Microsoft 365 Copilot Business is an add-on that costs $21 per user per month at list price in the US, and Microsoft's pricing page showed a promotional $18.00 per user per month on yearly billing when checked on 2026-1…
Stop Building Fast Websites That Nobody Sees: The Developer’s Guide to SEO
As developers, we obsess over Lighthouse scores. We minimize our JavaScript bundles, optimize our images, and ensure our server response times are lightning-fast. But what happens when you build a technically perfect, b…
How AI Search Visibility (GEO and AEO) Differs From Traditional SEO
Originally published on Soluma AI. Traditional SEO tries to win visibility in search results. GEO and AEO add a new challenge: becoming part of the AI generated answer. Here is what genuinely changes, what remains the s…
What Would Happen to the AI Industry If Nvidia Lost Its Dominance?
What Happens When the Technology Behind Your AI Product Becomes Your Biggest Dependency? We talk about building AI-powered products. But are we paying enough attention to the infrastructure those products depend on? Ima…
NVIDIA backs Point2 and plans stakes in Upstage, Motif, RLWRLD
Korea's Ministry of Science and ICT and NVIDIA held a partnership forum for AI startups at COEX, according to NVIDIA's blog. Vice minister Ryu Je-myung and NVIDIA leaders met more than 20 Korean startups working on foun…
Your agent API upgrade needs a UI regression test
A successful SDK request is a low bar for an agent upgrade. Your backend can receive a valid response while the person using your app gets an empty result card, a file they cannot open, or a spinner that never ends. The…
Beyond the Grid: The Frontier of Geometric Deep Learning
Geometric Deep Learning: Mapping non-Euclidean manifolds, graphs, and 3D molecular structures beyond flat grid representations. Why standard Euclidean neural networks fail in non-flat domains—and how graph manifolds are…
Nemotron 3.5 Super VL lands on AWS SageMaker JumpStart
AWS announced on its Machine Learning Blog that NVIDIA Nemotron 3.5 Super VL can now be deployed from Amazon SageMaker JumpStart, either through SageMaker Studio or a few lines of the SageMaker Python SDK. What the mode…
Show jewelry weight and specs on Shopify with Liquid
A photograph shows the finish. A weight in grams gives shoppers a sense of how the piece will feel. That matters when they are choosing between a lightweight ear cuff and a heavier piece of hand-forged silver jewelry. A…
Which flag keeps claude -p from running your hooks?
Originally published at omerbinsaleem.com by Omer Bin Saleem (Omer Saleem). I wanted a scheduled claude -p job that only reads files. I tested which flags keep project hooks out while the subscription login keeps workin…
Customer found my product through ChatGPT and paid on day one, skipping the free trial
Solo founder here, I'm building an AI tool that edits short form videos for creators. So something kinda cool happened this week. I got a new paying customer and had no idea where they came from. No outreach, no ads, no…
CoreWeave bond yield tops 16% as AI credit stress rises
Article URL: https://www.cnbc.com/2026/11/06/coreweave-bond-yield-tops-16percent-as-ai-credit-stress-rises.html Comments URL: https://news.ycombinator.com/item?id=50435660 Points: 57 # Comments: 22
How do you market in crowded spaces without alienating your target users? (B2C)
If you have a product that is legitimately different from the players in your space, but looks roughly the same as all of them due to what users expect the app to look and feel like, how do you market your differentiato…
Formalizing CPython
Article URL: https://broyojo.com/python-formalization/ Comments URL: https://news.ycombinator.com/item?id=50435105 Points: 12 # Comments: 3
Non-Technical founder looking for advice on hiring a developer.
Right now, I am running a small restaurant ordering resale business to around 30 restaurants. - However that software is going away next year, I’ve secured a replacement however it’s led me to thinking, that the SaaS it…
I spent $6,000 and 7 months building an app. I have 4 paying customers. And somehow, I've never been more excited.
7 months. $6,000. Hundreds of bugs. Countless redesigns. And 4 paying customers who have no idea how much they mean to me. Here's the crazy part. All 4 subscribed when my app looked like absolute vibe-coded garbage, and…
Locating the source of a mysterious beep
Article URL: https://simonwillison.net/2026/Nov/9/mysterious-beeps/ Comments URL: https://news.ycombinator.com/item?id=50434310 Points: 70 # Comments: 34
Horible public key tricks
Article URL: https://maurycyz.com/projects/badcert/ Comments URL: https://news.ycombinator.com/item?id=50434264 Points: 83 # Comments: 33
Fable 5.2 one-shotted my nephew's dream game
Article URL: https://notesbylex.com/fable-5-2-one-shotted-my-nephews-dream-game Comments URL: https://news.ycombinator.com/item?id=50433659 Points: 260 # Comments: 184
Exact – a new cross platform UI framework
Article URL: https://github.com/expo/exact Comments URL: https://news.ycombinator.com/item?id=50433541 Points: 87 # Comments: 38
TPU 8tx and TPU 8i Max
Article URL: https://blog.google/innovation-and-ai/infrastructure-and-cloud/global-network/tpu-8i-max-and-8tx/ Comments URL: https://news.ycombinator.com/item?id=50432831 Points: 233 # Comments: 71
Claude Fable 5.2 scores 65 on Artificial Analysis, highest so far
Article URL: https://artificialanalysis.ai/models/claude-fable-5-2 Comments URL: https://news.ycombinator.com/item?id=50431144 Points: 317 # Comments: 231
Onde estão as oportunidades para o Brasil na Inteligência Artificial? - Exame
Onde estão as oportunidades para o Brasil na Inteligência Artificial? Exame
Itaú anuncia IA generativa para pequenos negócios - CNN Brasil
Itaú anuncia IA generativa para pequenos negócios CNN Brasil
What actually got your first 10–20 users when you had no audience?
I’m a solo founder with a B2B SaaS that’s live and working but has almost no users. I launched on Product Hunt and finished around #369, and I don’t have an audience or an ad budget. For founders who’ve been here: which…
Sam Altman’s advice for getting your first 100 users
came across an old Stanford talk by Sam Altman where he talked about how early stage founders should actually approach getting their first 100 users. he broke it down into 4 main paths, ranked roughly from most effectiv…
Inteligência artificial avança entre pequenos negócios e já faz parte da rotina de 51% deles - Brasil 247
Inteligência artificial avança entre pequenos negócios e já faz parte da rotina de 51% deles Brasil 247
Flávio pagou R$ 600 mil a empresa que vende nos EUA sistema de IA para manipular eleições - Intercept Brasil
Flávio pagou R$ 600 mil a empresa que vende nos EUA sistema de IA para manipular eleições Intercept Brasil
Empresas buscam retorno e redução de custos com inteligência artificial - CNN Brasil
Empresas buscam retorno e redução de custos com inteligência artificial CNN Brasil
Guia: As 40 Melhores Empresas de Desenvolvimento de Sites - Hostinger
Guia: As 40 Melhores Empresas de Desenvolvimento de Sites Hostinger
Capacitação gratuita em inteligência artificial oferece 5 mil vagas para mulheres empreendedoras - www.gov.br
Capacitação gratuita em inteligência artificial oferece 5 mil vagas para mulheres empreendedoras www.gov.br
Pequenos negócios do Brasil usam mais IA que os norte-americanos, aponta Sebrae - Agência Sebrae de Notícias
Pequenos negócios do Brasil usam mais IA que os norte-americanos, aponta Sebrae Agência Sebrae de Notícias
Prefeitura de Manaus abre inscrições para ‘Trilha da Tecnologia’ - Prefeitura de Manaus
Prefeitura de Manaus abre inscrições para ‘Trilha da Tecnologia’ Prefeitura de Manaus
Tecnologia e inovação entram na pauta do desenvolvimento - Prefeitura de Ubatuba
Tecnologia e inovação entram na pauta do desenvolvimento Prefeitura de Ubatuba
New rule banning a SaaS product category: No Promotional or Advertising SaaS
Hello SaaSers, Today we are announcing a new rule against content dedicated to an entire Software as a Service product category on the sub: Promotional or Advertising SaaS. We as moderators and regular users have been s…
IA entra em fase de escala enquanto papel estratégico avança nas empresas; mercado brasileiro se destaca, aponta Deloitte - Deloitte
IA entra em fase de escala enquanto papel estratégico avança nas empresas; mercado brasileiro se destaca, aponta Deloitte Deloitte
r/SaaS v2 is Building in Public - month 1
Hello fellow SaaS-ers, Exactly one month ago, u/ModCodeofConduct notified u/Dubinko and myself about being selected to moderate this sub, as the previous mod team was deemed unfit for the task. This message is meant to…
Empresas ampliam contratações em Tecnologia no Brasil em 2026 - Educa Mais Brasil
Empresas ampliam contratações em Tecnologia no Brasil em 2026 Educa Mais Brasil
Programa de aceleração de negócios de tecnologia de SP prorroga inscrições - Prefeitura de São Paulo
Programa de aceleração de negócios de tecnologia de SP prorroga inscrições Prefeitura de São Paulo
Escolas do Futuro de Goiás abrem mais de 6 mil vagas para cursos gratuitos - Goias.GOV
Escolas do Futuro de Goiás abrem mais de 6 mil vagas para cursos gratuitos Goias.GOV
A diferença entre o SaaS brasileiro e latino-americano - Pipeline
A diferença entre o SaaS brasileiro e latino-americano Pipeline
Principais tendências de desenvolvimento de aplicações - IBM
Principais tendências de desenvolvimento de aplicações IBM
Gigantes de software dos EUA enfrentam desafios e perdas acionárias por IA - CNN Brasil
Gigantes de software dos EUA enfrentam desafios e perdas acionárias por IA CNN Brasil
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