file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
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   Copyright 2022 Alan Shreve (@inconshreveable)

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

    the user installs one, as long as the modified version is
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    c) Accompany the work with a written offer, valid for at
    least three years, to give the same user the materials
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    d) If distribution of the work is made by offering access to copy

    customarily used for software interchange.

    b) Convey the object code in, or embodied in, a physical product
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    model, to give anyone who possesses the object code either (1) a
    copy of the Corresponding Source for all the software in the