This directory contains prebuilt Cedar Detect server binaries that the PiFinder uses for star detection during plate solving:
| File | Platform |
|---|---|
cedar-detect-server-aarch64 |
64-bit ARM (aarch64) |
cedar-detect-server-arm64 |
64-bit ARM (arm64) |
At runtime PiFinder launches the binary matching the host architecture as a
local gRPC server (see the application startup notes in the project CLAUDE.md).
Cedar Detect is developed by Steven Rosenthal (smroid):
- Repository: https://github.com/smroid/cedar-detect
These binaries are built from that source and bundled here for convenience so that PiFinder runs out of the box without a separate build step.
Cedar Detect is published under the Functional Source License, Version 1.1,
MIT Future License (FSL-1.1-MIT). A verbatim copy of that license, including
the upstream copyright notice, is kept alongside the binaries in
LICENSE-cedar-detect.md.
In summary, the FSL grants broad rights to use, modify, and redistribute the software for any Permitted Purpose — which includes internal use, and non-commercial education and research — but excludes a "Competing Use": making the software available in a commercial product or service that substitutes for, or offers substantially similar functionality to, Cedar Detect. (The license also converts to the permissive MIT license five years after each version is released.)
Note: This
FSL-1.1-MITlicense applies to Cedar Detect (the binaries in this directory). It is separate from the GPL-3.0 license that covers the PiFinder project itself (see theLICENSEfile in the repository root).
Because PiFinder is also offered as a commercial product, bundling and distributing Cedar Detect with it falls outside the FSL's Permitted Purpose. The PiFinder project does this under a separate license granted expressly by the copyright holder, Steven Rosenthal — not under the public FSL-1.1-MIT terms.
The FSL itself anticipates this: "The Software is available to be licensed under different terms; please contact the copyright holder (Steven Rosenthal smr@dt3.org) to discuss." This separate grant covers the PiFinder project's use only; it does not extend the right to commercial/competing use to anyone else redistributing these binaries.
If you fork or redistribute PiFinder commercially, you are responsible for your own compliance with the FSL-1.1-MIT terms or for arranging your own license with the copyright holder.
Our thanks to smroid for supporting the PiFinder project.