Licenses

MeasureOnce is built on open specifications and open-source software. This page lists every third-party license as each dependency is wired in, and is finalized in full at launch.

Gridfinity specification (MIT): the Gridfinity bin and baseplate generators follow the public Gridfinity specification — grid pitch, base profile, and magnet/screw hole geometry — fromgridfinity.xyz/specification. Gridfinity originated with Zack Freedman and was released under the MIT license as "a framework for the community to extend." No code from any Gridfinity implementation is used here — the geometry is this project's own, built from the specification's public dimensions.

Fonts (self-hosted, all SIL Open Font License 1.1): Bricolage Grotesque, Instrument Sans, JetBrains Mono. Full license text ships alongside the font files at/fonts/licenses/.

Signs and keychains fonts (self-hosted, all SIL Open Font License 1.1): thetext-sign generator offers a choice of ten typefaces — Anton, Archivo Black, Bebas Neue, Oswald, Montserrat, Zilla Slab, Playfair Display, Caveat, Allerta Stencil, and JetBrains Mono (already listed above; reused here for its monospace look). Selection rationale is recorded in the project's decision log (ADR 0009). Full license text ships alongside the font files at /generator-fonts/licenses/.

opentype.js (MIT): converts a font's own glyph outlines into the printable geometry for the text-sign generator. No modifications; used as published ongithub.com/opentypejs/opentype.js.

Star map data and code: the star mapgenerator uses the following.

Star positions and brightness (Hipparcos catalogue, ESA 1997) and IAU constellation lines and names, as packaged byd3-celestial by Olaf Frohn (BSD 3-Clause; text below), pinned to one commit and trimmed to stars brighter than magnitude 6.
astronomy-engine (MIT, Donald Cross): computes where the sky is for a given moment and place, and the Moon's position. Used as published ongithub.com/cosinekitty/astronomy.
City list for place search (GeoNames, CC BY 4.0): cities of 50,000 people or more, from geonames.org, bundled with the site so searching never contacts any outside service.

Copyright (c) 2015, Olaf Frohn
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The complete list — including every runtime library — is filled in as each generator ships.