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sds-converter: Converting Safety Data Sheets to MHLW Standard JSON with Rust and LLMs

Background Safety Data Sheets (SDS) are mandatory documents for every chemical product — solvents, adhesives, industrial gases, cleaning agents. Every manufacturer that supplies a hazardous chemical must provide one. In Japan, the governing standard is JIS Z 7253, which defines 16 sections covering chemical identity, hazard classification, first aid, storage, transport information, and more. The Ministry of Health, Labour and Welfare (MHLW) published a standard JSON schema in March 2025 for el

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ExternalSoftware Engineering
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OpenLiDARViewer: A Browser-Based LiDAR and Point-Cloud Viewer

Rendering LiDAR Scans in the Browser Without Uploading Anything Most point-cloud workflows still start the same way. Install a desktop tool. That workflow makes sense when you are doing serious GIS, photogrammetry, survey processing, classification, or production work. But there is another moment that is much simpler: You just received a scan and want to know what is inside it. Does it open? That is the moment I wanted to improve with OpenLiDARViewer. It is an open-source, browser-based LiDAR

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ExternalSoftware Engineering
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Local-First Browser Tools: What You Should Not Upload Online

Online tools are useful. You paste JSON, format code, convert files, clean text, test an API, or compress an image without installing anything. But there is one habit developers should avoid: Pasting or uploading sensitive data into random tools. The problem A simple debugging task can accidentally expose private data. Examples: API keys in config JSON The issue is not that online tools are always bad. The issue is that not every task needs an upload. What local-first means A local-first browser

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