Looks like GrafEq?

http://www.peda.com/grafeq/

I'm using Google's `repo` for multi-repo project at work.

https://gerrit.googlesource.com/git-repo

Last time I found a paper in Graphics Gems titled Solving the Nearest-Point-on-Curve Problem, which transforms the problem into a Bernstein polynomial form. Then an exact solution can be obtained using A Bézier Curve-Based Root-Finder. This is my implementation [1], but it's not very robust for high-degree cases.

[1] https://github.com/Long0x0/distance-to-bezier

Your link 404s- private repo?

Oops, updated.

Better if it allowed single-tool installs instead of the whole suite.

Don't have access to read the code, but I think ideally there should be only one instance created at startup, right?

At most one instance at start up. Asynchronous creation or lazy creation on first use are two other potential options. Speaking generally, not Unreal-specific.

If VPNs don't work for you, I recommend using an anti-censorship tool with an obfuscation protocol like v2ray which is commonly used in China.

https://github.com/v2fly/v2ray-core https://github.com/XTLS/Xray-core https://github.com/net4people/bbs https://en.wikipedia.org/wiki/Great_Firewall

Not exactly - encoding it twice increases by 4/3 * 4/3 - 1 = 7/9, which is about 77.78% more than the original.

Maybe Printable Document Format.

This was my first instinct as well, which makes sure numbers are adjacent. OP also mentioned this variant as lucidBrot/hexgridspiral in the older post.