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ROUNDUP TECH / Guides

Guides by topic

Articles on accounts, developer tools, AI models, and devices.

01

Accounts and data

Passkeys, sharing permissions, and recovery after deletion.

  1. Your browser extension wants every site: how to limit its access
  2. Before you send a file link, check who can actually open it
  3. Changing phones with passkeys: check your recovery route before you erase the old device
  4. Before deleting cloud files, check what your backup can restore
02

Developer workflows

Retrieval, tool calls, and longer tasks in everyday development.

  1. PHP’s disclosure dispute and the responsibility to users
  2. An AI answer cites your PDF. Check the sentence before you reuse it
  3. How LightRAG combines graph indexing with entity and topic retrieval
  4. Measuring Mercury 3 beyond token throughput
  5. Xiaomi demonstrates MiMo V2.5 Pro on extended coding tasks
03

Choosing a model

Model costs, memory requirements, and reasoning settings.

  1. Local LLM memory: Leave room for the conversation
  2. Reasoning costs in DeepSeek V4.1-Flash and GLM-5.3-Flash
  3. Grok 4.3 compared with DeepSeek V4 Flash, MiniMax M2.7, and MiMo 2.5
  4. DeepSeek makes V4-Pro's 75% discount permanent
04

Devices and connections

Check ports, cables, and display setups before replacing hardware.

  1. Full Wi-Fi bars, slow mesh: find the weak link before moving a node
  2. A USB-C cable charges your laptop but the monitor stays blank: what to check
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