Infrastructure, and usually code powering them is very hard to open source imo. In a way that is useful. Open source with external users puts an inherent speed limit on how fast you can move and adds maintenance time. Part of the reason I don’t open source NFDB is commercial, but part of it is also supporting external users and the guarantees needed. It is somewhat complicated to operate without experience, and there can be a lot of breaking changes at times. Both of these costs are not worth the contributions (most likely none as it is a pretty specific thing).