Ian Darwin
Techie (Java Champion, Android/Flutter, OpenBSD, EVs), Author, Conference Speaker, Tech instructor, Photographer, Dad.
For truth, freedom, humanity, science.
Things I do
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Java
I code, write about, and teach Java and Java EE (Jakarta).
](/java)
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Mobile
I build all-platorm mobile apps in Flutter, or in Java for Android-only.
](/mobile)
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Books
Best books on computer software, by me and others.
](/books)
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Free Software
I contribute to open source projects, especially OpenBSD, my own on github, etc.
](/freeware)
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OpenBSD Unix
A free Unix-like operating system focussing on security, code correctness.
](/openbsd)
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Photog for change
Portraits to real estate to docs. Exposing what needs exposing.
](https://iandarwinphoto.com)
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Sustainability
Sustainable purchasing is usually an option. Vote with your wallet.
](/sustainable)
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Electric Cars rock!
EVs are cleaner, cheaper, and one "road" towards a sustainable climate.
](https://ianonevs.com)
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I Tried That
Reviews of tech products (and some non-tech).
](https://medium.com/i-tried-that)
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Causes
With Charity For All: Worthy causes to support.
](/causes)
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3D Printing
Making physical objects under software control.
](/3dprinting)
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Travel
Occasional Travel Blogs too.
](/travel)
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In my bag
Hardware & software I use.
](/in-my-bag)
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Computing History
The long history of computing
](/history)
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Everything Else
I have tons of information available, much of it original.
](/allTheRest.html)
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Consulting
Hire me to train, develop, mentor, administer, ...
](https://rejmi.net/)