Build Your Own Minecraft 26.2 Server: A Step-by-Step Java Edition Hosting Guide for Beginners
This guide explains how to set up a vanilla Minecraft Java Edition server using Debian, MCSManager, and Docker on a cloud VPS. It covers purchasing a VPS, NAT port mapping, installing the MCSM panel and JDK, configuring and launching the server, and connecting from the client. Readers learn to manage a 24/7 server via a visual panel, control game modes, and play with friends.
MQTT Demystified: Inside the "Post Office" of the IoT World
MQTT is the de facto IoT messaging protocol, designed in 1999 for low-bandwidth, unreliable networks like oil-pipeline monitoring. Unlike HTTP’s request/response model, it uses a lightweight publish/subscribe architecture where devices connect to a central broker, enabling efficient cloud-to-device push without public IPs. Key mechanisms include three QoS levels (at most once, at least once, exactly once), retained messages for late subscribers, Last Will for abnormal disconnects, keep-alive heartbeats, and clean sessions. MQTT 5.0 adds reason codes, shared subscriptions, message expiry, and topic aliases. Compared with HTTP, CoAP, and WebSocket, MQTT offers minimal overhead, flexible reliability, and strong suitability for massive device fleets, low-power sensors, smart homes, industrial IoT, and connected vehicles. The article also provides a runnable Python example using public brokers, helping readers implement their first MQTT publish/subscribe cycle quickly. Readers gain both conceptual understanding and practical starter knowledge.
Ugreen DXP4800Pro NAS Unboxing, Review, and Teardown — 4-Bay NAS, i3-1315U, Storage Server
The article is a detailed unboxing, review, and teardown of the Ugreen DXP4800Pro 4-bay NAS, powered by an Intel i3-1315U. The author upgraded from a QNAP NAS, citing UGOS Pro's open, customizable Debian-based system and superior hardware value. Key specifications include dual network ports (10GbE and 2.5GbE), HDMI 2.1, USB 3.2 Gen2, SD slot, two M.2 PCIe Gen4 slots, and dual DDR5 memory slots. The teardown reveals quality engineering: ASMedia SATA controllers, per-drive power switching, an IT8613E management controller, a substantial CPU power delivery system, an Intel I226-V 2.5GbE controller, and a dedicated 10GbE controller with heatsink. Performance testing showed 9.38Gbps LAN throughput and Unixbench scores of 1652 single-core and 8859 multi-core. The review highlights useful features: Docker support, AI-powered photo recognition, integrated media scraping, snapshots, and effective remote relay access. However, shortcomings are documented: immature virtual machines, inability to benchmark drives already in storage pools, limited cloud-drive integration, restrictive Baidu sync, missing VLAN support, and limited DDNS flexibility. The article provides practical insight for prospective NAS buyers evaluating hardware quality, software maturity, and upgradeability.
Recommendations and Introductions to Various AI LLM API Platforms, Updated June 9, 2026
This article surveys 2026 LLM API aggregation and routing platforms, addressing the pain point of managing multiple provider keys. It reviews eight Chinese platforms—SiliconFlow, AstraFlow, Alibaba Cloud Bailian, Qiniu Cloud, AI Ping, Zhipu AI, FreeModel, and Tencent Cloud TokenHub—plus global leader OpenRouter. These services expose OpenAI-compatible endpoints to access hundreds of models, with features like intelligent routing, failover, enterprise isolation, and free trial tokens. Benefits include lower development costs, simpler billing, and rapid switching between open/closed models. Caution: FreeModel is a small platform; large top-ups are discouraged.
Wuhan-Qingdao Travel Log & Photo Sharing
This travel log documents a six-day Wuhan–Qingdao trip taken with friends in May 2026, using four vacation days plus a weekend. The author shares photos and practical itinerary details: in Wuhan, they visited Jianghan Road Walking Street, Lihuangpi Road, the Yellow Crane Tower (outside only), the Wuhan Yangtze River Bridge, Chu River and Han Street, Hubei Provincial Museum, and Optics Valley Square. In Qingdao, highlights included a foggy ferry ride, Taidong Night Market (noted as the only lively nightlife area), the Catholic Church, Zhanqiao Pier, Signal Hill, a Miyazaki-themed street, May Fourth Square's light show, and the Tsingtao Brewery Museum. The post notes most Qingdao days were foggy or rainy, limiting views, and that images were compressed to WebP and shot on a Huawei Mate 70 Pro+. It serves as a route reference and photo album for self-guided city travel.
Hong Kong Travel Log and Photo Sharing
A two-day Hong Kong trip from Shenzhen is detailed, highlighting practical travel tips. High-speed rail takes 18 minutes to West Kowloon, with quick customs. Key experiences include the Star Ferry, Ding Ding trams, and Peak Tram to Victoria Peak for panoramic city and night views. The author notes that Alipay/WeChat Pay are widely accepted, and McDonald's offers cheap eats, while cha chaan teng dinners can cost over 200 RMB for two. Day two covers Tsim Sha Tsui, Sham Shui Po’s electronics market, and Mong Kok, with a disappointing pre-cooked meal. The abstract offers a cost-conscious itinerary and payment guidance for visitors.
![[Open Source] IP Query Web — IP Geolocation Lookup, My IP, Domain Resolution](/upload/ChatGPT%20Image%202026%E5%B9%B45%E6%9C%8827%E6%97%A5%2002_03_24.png)
[Open Source] IP Query Web — IP Geolocation Lookup, My IP, Domain Resolution
An open-source IP geolocation query system built on the CZ88/Pure IP database is presented. It supports IPv4/IPv6 lookup, domain resolution, client IP detection, batch queries, and RESTful APIs with JSON or plain-text output. Deployment options include bare-metal Node.js, Docker, and Baota panel. Features include weekly automatic database updates, CLI tool, bilingual UI, site statistics, multi-layer security (CC protection, rate limiting, security headers), and CDN/Nginx real-IP support. Users can self-host a private lookup service, integrate the API into applications, or study Node.js/Express architecture.
Hermes Agent Deployment Guide: Build Your First AI Assistant Step by Step
Hermes Agent is an open-source, self-hosted AI agent system with long-term memory and skill accumulation. This guide demonstrates a 10-minute deployment on a Linux cloud server, covering environment setup, LLM API configuration, TUI conversation, and QQ bot integration. It supports multiple models (Kimi, GLM, Claude, Gemini, etc.) and 40+ tools including MCP, terminal, and cron. The example shows the agent designing and deploying a Minecraft website via a QQ bot, and users can customize it to add features. Readers gain a practical path to building a continuously improving personal AI assistant.
Operational Amplifier (Op-Amp) Beginner's Guide: From Theory to Practice
This beginner guide explains operational amplifiers from fundamentals to practical use. It covers op-amp types, open-loop operation as a comparator, and negative feedback for linear amplification. Key circuits—voltage follower, non-inverting, and inverting amplifiers—are analyzed using virtual short and virtual open concepts, with gain formulas and common pitfalls. It provides selection guidance, essential DC/AC/bandwidth parameters, and hands-on breadboard lab experiments using LM358. Readers gain the ability to analyze entry-level op-amp circuits, avoid typical mistakes, and build and test basic amplifier circuits with confidence.
Quick Unboxing & Review of 5G CPE NRadio C2000MAX
A quick unboxing and review of the NRadio C2000 MAX 5G CPE. I bought this 5G CPE to replace my broadband. The current broadband in my rented apartment
ZTE F40 5G Portable Wi-Fi: A Quick Unboxing and Review
The ZTE F40 is a compact 5G RedCap portable Wi-Fi with a USB-drive design, Wi-Fi 6, and up to 16 device connections. It offers dual built-in eSIMs plus a physical SIM slot. Real-world tests showed Telecom 5G download speeds of 41Mbps and uploads of 79Mbps, while Mobile 5G reached 22.7Mbps downlink. Power consumption was notably low at 0.9W idle and 2.4W under load. The web interface includes band locking and SIM switching. With a 1.5TB monthly data plan at roughly 58 RMB per month, it provides cost-effective, low-power 5G connectivity.
CommentAI - Typecho Blog AI Intelligent Comment Moderation & Reply Plugin
CommentAI - Typecho Blog AI Intelligent Comment Moderation & Reply Plugin Introduction CommentAI is an AI intelligent comment moderation & reply plugi
![[Open Source] PD65W GaN Charger (ACF), Based on DK8607AD, IP6538-AC-65W, XPM52CDP65](https://img.zeruns.top/blog-en/2026/03/02/WPS%E6%8B%BC%E5%9B%BE0(1)-1772466019.webp)
[Open Source] PD65W GaN Charger (ACF), Based on DK8607AD, IP6538-AC-65W, XPM52CDP65
Open source a 65W PD fast charging GaN charger, based on DK8607AD power chip, Active Clamp Flyback (ACF) topology, IP6538-AC-65W + XPM52CDP65. Downloa
![[Open Source] SC8703-Based Adjustable Buck-Boost DC/DC Power Supply | Voltage & Current Adjustable, PD Fast Charge Input Supported](https://img.zeruns.top/blog-en/2026/02/23/IMG_20260216_180814-1771781704.webp)
[Open Source] SC8703-Based Adjustable Buck-Boost DC/DC Power Supply | Voltage & Current Adjustable, PD Fast Charge Input Supported
An open-source buck-boost DC/DC module based on SC8703 accepts 2.7–36V input and outputs 1.21–36V with up to 10A, adjustable current limit, 600kHz switching, and 95.45% peak efficiency. It includes XT30 and Type-C PD input via CH224Q. Provided files: KiCad project, Gerbers, BOM, stencils, interactive BOM, and 3D models. Proper heatsinking is required; bare-board operation is recommended below 5A.
OWON HDS160 Oscilloscope Multimeter: Unboxing, Review, and Teardown
The article presents a hands-on unboxing, review, and teardown of the OWON HDS160, a 4½-digit handheld oscilloscope multimeter purchased for 365 RMB. Its main appeal is the built-in 1 MHz oscilloscope that works with standard multimeter test leads, enabling direct voltage or current waveform measurement and automatic detection of the input jack to switch ranges. Key specifications include 60000-count display, DC voltage accuracy of ±(0.05%+5 digits), CAT III 1000 V safety rating, 2.8-inch IPS screen, and a single 18650 battery. Field tests cover USB voltage, AC mains waveform (50 Hz, 328 V peak, 232 V RMS), STM32 board inrush current, and low-power current measurements. The teardown reveals an HC32F460PETB MCU, HY3131 multimeter front-end, MAX6006AESA voltage reference, SGM41511 charger, GD25Q128ESIG flash memory, and infrared components for jack detection. The author notes a slightly crooked Type-C port and a clock that resets when the battery is removed. Readers gain insight into the device’s capabilities, component choices, internal construction, and practical limitations, useful for evaluating its suitability for low-frequency electrical and embedded debugging tasks.