PolyForm Shield would probably achieve the same result as the Timescale License. https://polyformproject.org/licenses/shield/1.0.0/
The Perimeter variant might be usable, but only if competing with versions of the product I don't use is allowed (it's not clear to me if that's the case)
New Products
If you are using the software to provide a product that does not compete, but the licensor or any of its affiliates brings your product into competition by providing a new version of the software or another product using the software, you may continue using versions of the software available under these terms beforehand to provide your competing product, but not any later versions.
Discontinued Products
You may begin using the software to compete with a product or service that the licensor or any of its affiliates has stopped providing, unless the licensor includes a plain-text line beginning with Licensor Line of Business: with the software that mentions that line of business. For example:
Licensor Line of Business: YoyodyneCMS Content Management System (http://example.com/cms)
Maybe this is software meant to work over the network and a security vulnerability is discovered. The license says I am stuck running a version with vulnerabilities until I can figure out how to use a different project. That's a deal-breaker.
> Goods and services compete even when provided free of charge
If you host your project on Github under this license and I fork it, then my Github page is competing with yours and I am therefore in violation.
Distribution of the source code, modified or unmodified, would not be considered competition. On the contrary, it is an explicitly granted right. So, for example, forking on GitHub is allowed.
Distribution License
The licensor grants you an additional copyright license to distribute copies of the software. Your license to distribute covers distributing the software with changes and new works permitted by Changes and New Works License.
> Any purpose is a permitted purpose, except for providing any product that competes with the software or any product the licensor or any of its affiliates provides using the software.
> Goods and services compete even when provided free of charge. If you market a product as a practical substitute for the software or another product, it definitely competes.
If I use your software and find a bug, I am prohibited from hosting a fork with a fix for the bug on Github as it would clearly be a practical substitute for the original.