How to Replace Azure Storage SFTP with Self-Hosted SFTPGo and Cut Costs

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Azure Storage SFTP charges approximately $0.30 per hour per endpoint, adding up to around $220 per month, making it costly for teams managing file transfers at scale. SFTPGo is a free, open-source alternative that supports SFTP, FTP/S, and WebDAV with backends including Azure Blob, S3-compatible storage, and Google Cloud Storage. A technical guide published on DEV Community walks developers through deploying SFTPGo on a Linux server using Docker Compose and Traefik as a reverse proxy with automatic TLS via Let's Encrypt. The setup covers user authentication with passwords, SSH keys, and two-factor authentication, as well as connecting S3-compatible object storage and migrating from an existing Azure Storage SFTP configuration. The result is a self-hosted file transfer server that replicates Azure Storage SFTP capabilities without any per-endpoint licensing cost.

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CAP Theorem Explained: How Distributed Systems Balance Consistency and Availability

CAP theorem, introduced by Eric Brewer in 2000, defines three core properties of distributed systems: Consistency, Availability, and Partition Tolerance. Since network partitions are unavoidable in real-world distributed environments, engineers must choose between prioritizing consistency (CP) or availability (AP). CP systems like ZooKeeper and HBase suit use cases such as financial transactions, while AP systems like Cassandra and DynamoDB are preferred for social media and e-commerce workloads. The BASE model — Basically Available, Soft State, and Eventually Consistent — has emerged as a practical complement to CAP for modern distributed architectures. Choosing the right consistency model depends on business requirements, technology stack, and acceptable operational complexity.

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ProgrammingDEV Community ·

JetBrains Releases Mellum2, a 12B Open-Source MoE Model for Developer Tasks

JetBrains launched Mellum2 on June 1, 2026, an open-source large language model built on a Mixture-of-Experts architecture with 12 billion total parameters, of which only 2.5 billion are activated per inference. This selective activation makes inference more than twice as fast as comparable full-scale models, substantially lowering deployment costs. Rather than competing with frontier AI models, Mellum2 is designed as a lightweight specialist for high-frequency developer tasks such as code completion, prompt classification, tool selection, context compression, and sub-agent planning validation. The model supports only text and code, intentionally omitting multimodal capabilities to stay lean and suitable for private enterprise deployments handling sensitive code or confidential data. Released under the Apache 2.0 license, model weights are available on HuggingFace and a technical report has been published on arXiv under ID 2605.31268.

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ProgrammingDEV Community ·

Developer builds AI farm advisory chatbot for Nigerian smallholder farmers using Gemma 4

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ProgrammingDEV Community ·

Deploy Tracking, Not Smarter AI, Was the Key to Trustworthy Incident Analysis

A development team building an AI-powered incident detection system found that their first version, which lacked system context like deploy tracking and service topology, correctly identified incident causes only 35% of the time. The tool frequently blamed the most recently deployed service regardless of the actual root cause, and within two weeks three engineers had abandoned it entirely. The team identified that effective incident response depends on rapidly connecting relevant information — including deploy events, dependency graphs, and historical postmortems — rather than generating plausible-sounding explanations. After integrating CI/CD deploy data directly into the incident context, engineer agreement with the system's top hypothesis rose from 35% to 70%. The core lesson was that AI summarization should explain what a well-grounded retrieval system surfaces, not substitute for the underlying contextual data.

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