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How Food Powers Your Body — Metabolism, which unleashes the energy in what you eat, may be nature’s most electrifying invention.
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Feather is a collection of simply beautiful open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency, and flexibility.
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Layout Breakouts with CSS Grid — Extending elements beyond the content area with CSS Grid & named grid lines
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Open-source maps for everyone, powered by Headway and OpenStreetMap
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OpenRailwayMap (previously called "Bahnkarte") is a detailed online map of the world's railway infrastructure, built on OpenStreetMap data.
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Focus plugin for lightroom shows you which focus points were selected by your camera when the photo was taken
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Advanced css gradient editor with multiple layer support
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An essential guide to different Mechanical (keyboard) Switches and how they work
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[x]it! is a plain-text file format for todos and check lists with emacs major mode mode
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Using ssh_config Match to connect to a host using multiple IP or Hostnames
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Numpad is a text editor/calculator hybrid.
From the HN comments, there is also calcpad ("A different take on the caculator"), an electron app where an online version is available too. Both nifty.
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SSH Tips and Tricks, about Yubikey SSH forwarding, auto start tmux on connect and more (HN thread)
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ansi-art — allows you to render a regular image as a 24-bit, Unicode-capable version of ANSI Art
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ergodox; a next-generation ergonomic keyboard
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standardebooks.org — Free and liberated ebooks, carefully produced for the true book lover.