How to shrink a scanned PDF by downsampling its images in Python
A PDF made from phone photos is usually not big because of the text. It is big because every page is a 3000-pixel JPEG drawn on a sheet of paper that only needs…
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Fintech Tenant Isolation: Node.js/Postgres State for Browser Uploads to Object Storage
Short answer: put report bytes directly into object storage with a short-lived signed upload URL, but let Node.js and Postgres decide which tenant owns the obje…
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Cancelling a Remote A2A Task
Quick answer: The local Stop action ends the desktop view and stops the SSE stream, but it does not cancel a task running on the remote A2A agent. To stop that …
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Upgrading n8n v1 to v2: Seven Deprecations in One Log File
Originally published on my blog — read it there with the full context, code and updates . I run n8n as the automation backbone for my self-hosted stack — it han…
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How to convert a PDF to Word with Python and PyMuPDF
A PDF has no paragraphs, headings or tables. It has glyphs, each drawn at an x and y on a page, and a few rectangles and lines. Every PDF-to-Word converter is t…
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Hindsight Gave Our Agent Memory. Guardrails Decide When It Listens. v
The most important line in our accounts-payable agent is the one that ignores memory. Ledgerwise resolves invoice exceptions — price variances, short shipments,…
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Designing an Item Master for eTIMS: Item Codes, Product Types, Unit Conversions and Stock Movement Types
By Isaac Muthui, CEO, Tamalaki Business Network Ltd. Originally published at factoraerp.com . If you are building or integrating an ERP for a food factory in Ke…
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I let AI agents build and run my T-shirt store from Slack in just 24 hours
Most "AI agent" demos are one chatbot in one window. For the WeMakeDevs Flip the Switch hackathon I wanted to see what happens when you treat agents like a comp…
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A customer disputed a $312 invoice. Your AI responded 47 times. The dispute got louder.
A commercial cleaning company — 22 people, about 900 recurring accounts — found this one in a chargeback notice, which is the most expensive mailbox in business…
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Zod: Stop Bad Data at the Door of Your Checkout
A customer fills in a checkout form and picks two ceramic mugs and a linen tote. Somewhere between the form and the server, the quantity turns into the string "…
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苹果产品那些不够颠覆，却值得被学习的细节
Matrix首页推荐Matrix是少数派的写作社区，我们主张分享真实的产品体验，有实用价值的经验与思考。我们会不定期挑选Matrix最优质的文章，展示来自用户的最真实的体验和观点。文章代表作者个人观点 ... 查看全文
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One SQL predicate, eleven implementations: unifying them and what our differential harness caught
This is a story about paying down the most expensive kind of technical debt in a query engine — duplicated semantics — and the testing harness that made it safe…
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구글 Antigravity의 항균 펩타이드 탐색 가속화 — 계산은 빨라지는데, 구조를 '보는' 방식은 왜 그대로일까
구글 Antigravity의 항균 펩타이드 탐색 가속화 — 계산은 빨라지는데, 구조를 '보는' 방식은 왜 그대로일까 딥마인드가 항균 펩타이드(antimicrobial peptides) 탐색을 가속하는 Google Antigravity 기반 연구를 공개했습니다. 후보 발굴 파이프라인은 확…
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MCP Explained: Clients, Servers, When to Use It, and How Agent Harnesses Fit
What is MCP? Model Context Protocol (MCP) is an open standard for communication between an AI application and external capabilities. An MCP server can expose ca…
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A2A 1.0 vs 0.3 Bindings
Quick answer: A2A 1.0 supports three bindings, JSON-RPC, REST/HTTP with JSON, and native desktop gRPC, while A2A 0.3 supports JSON-RPC only. The desktop does no…
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SaaS Sales Rep Salary 2026: What SDRs and AEs Actually Earn — Base, OTE, and the 40.5% Warning
There is no single official SaaS sales salary — and no government wage series tracks SaaS sales reps specifically. The honest answer combines role-level platfor…
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A2A vs MCP: Which to Use
Quick answer: Use A2A when one agent delegates work to another agent, because it describes agent messages, tasks, status updates, and artifacts. Use MCP to expo…
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How to turn a photo of a signature into a transparent PDF stamp with Python
A signature photo has two problems before it can go on a PDF. The paper is not white, and it is not evenly lit, so pasting the JPEG as it is gives a grey rectan…
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Vue Frontend File Upload Runbook: Direct Presigned URLs, Axios Progress, Node Control
Use a short-lived upload capability, record an upload intent before issuing it, and make the browser report completion only after a separate finalize call succe…
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AI Review vs Human Review: Where Each Wins
Quick answer: AI review wins on speed, consistency, and the tireless structural reading of a large diff, tying findings to reproducible evidence. Human review w…
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