valhalla
nixpkgs
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valhalla | nixpkgs | |
---|---|---|
9 | 974 | |
4,174 | 15,656 | |
2.1% | 5.3% | |
9.3 | 10.0 | |
6 days ago | 3 days ago | |
C++ | Nix | |
GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
valhalla
- Seeking a Simple and Cost-Effective Tool for Calculating Distances and Travel Times in Node.js Backend
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Tesla has the best navigation software in the business
Does Tesla even do their own routing? As far as I am aware they use https://github.com/valhalla/valhalla
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How The Post is replacing Mapbox with open source solutions
Also see valhalla for an open source routing engine: https://github.com/valhalla/valhalla/
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Boost.Graph user survey
I use it to implement a solver for the Chinese Postman Problem for an open source routing engine named Valhalla (https://github.com/valhalla/valhalla/).
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[OC] All Roads Lead to Richmond - The quickest route to the capital city from anywhere within the state of Virginia
Link to library: https://github.com/valhalla/valhalla
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How to Learn Nix
Love the idea of a blog post like this. I tried something very similar a couple weeks ago on a c++ project, both in hopes it might lead to an improved user experience, and also for others struggling to figure it out.
https://github.com/valhalla/valhalla/discussions/3540
- How to get Distance matrix for ~400 locations without paying hundreds of Euros.
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Bolt v2... navigation cues lagging, auto start/stop finicky
Note that Wahoo doesn't implement their own routing, the Bolt is using OpenStreetMap and Valhalla (https://github.com/valhalla/valhalla) to do routing. That's probably a reason why bugs are never fixed, it's not their code.
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[OC] Areas reachable by rail+foo within two hours from Bristol Temple Meads Station. Starting different times over a day.
The pedestrian isochrone generation was done using (https://github.com/valhalla/valhalla)
nixpkgs
- Maintainers Leaving
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Air Force picks Anduril, General Atomics to develop unmanned fighter jets
https://github.com/NixOS/nixpkgs/commits?author=neon-sunset
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Eelco Dolstra's leadership is corrosive to the Nix project
I see two signers in the top 6 displayed on https://github.com/NixOS/nixpkgs/graphs/contributors
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3rd Edition of Programming: Principles and Practice Using C++ by Stroustrup
For a single file script, nix can make the package management quite easy: https://github.com/NixOS/nixpkgs/blob/master/doc/languages-f...
For example,
```
- NixOS/nixpkgs: There isn't a clear canonical way to refer to a specific package
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NixOS Is Not Reproducible
Yes, Nix doesn't actually ensure that the builds are deterministic. In fact it works just fine if they aren't. There are packages in nixpkgs that aren't reproducible: https://github.com/NixOS/nixpkgs/issues?q=is%3Aopen+is%3Aiss...
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The xz attack shell script
I'm not familiar with Bazel, but Nix in it's current form wouldn't have solved this attack. First of all, the standard mkDerivation function calls the same configure; make; make install process that made this attack possible. Nixpkgs regularly pulls in external resources (fetchUrl and friends) that are equally vulnerable to a poisoned release tarball. Checkout the comment on the current xz entry in nixpkgs https://github.com/NixOS/nixpkgs/blob/master/pkgs/tools/comp...
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Debian Git Monorepo
NixOS uses a monorepo and I think everyone's love it.
I love being able to easily grep through all the packages source code and there's regularly PRs that harmonizes conventions across many packages.
Nixpkgs doesn't include the packaged software source code, so it's a lot more practical than what Debian is doing.
https://github.com/NixOS/nixpkgs
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From xz to ibus: more questionable tarballs
In this specific case, nix uses fetchFromGitHub to download the source archive, which are generated by GitHub for the specified revision[1]. Arch seems to just download the tarball from the releases page[2].
[1]: https://github.com/NixOS/nixpkgs/blob/3c2fdd0a4e6396fc310a6e...
[2]: https://gitlab.archlinux.org/archlinux/packaging/packages/ib...
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GitHub Disabled the Xz Repo
True, but irrelevant -- _some packages_, _somewhere_, do depend on xz, which, if built, requires pulling the source from GitHub (see the default.nix: https://github.com/NixOS/nixpkgs/blob/nixos-23.11/pkgs/tools...)
It's not the vulnerability that's a problem right now (NixOS was protected by a couple of factors) but rather GitHub's hamfisted response.
That is the problem.
What are some alternatives?
Open Source Routing Machine (OSRM) - Open Source Routing Machine - C++ backend
asdf - Extendable version manager with support for Ruby, Node.js, Elixir, Erlang & more
Graphhopper - Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
Home Manager using Nix - Manage a user environment using Nix [maintainer=@rycee]
tilemaker - Make OpenStreetMap vector tiles without the stack
git-lfs - Git extension for versioning large files
Mapbox GL - Interactive, thoroughly customizable maps in native Android, iOS, macOS, Node.js, and Qt applications, powered by vector tiles and OpenGL
easyeffects - Limiter, compressor, convolver, equalizer and auto volume and many other plugins for PipeWire applications
Openstreetmap - The Rails application that powers OpenStreetMap
spack - A flexible package manager that supports multiple versions, configurations, platforms, and compilers.
maplibre-gl-leaflet - This is a binding from MapLibre GL JS to the familiar Leaflet API.
waydroid - Waydroid uses a container-based approach to boot a full Android system on a regular GNU/Linux system like Ubuntu.