Divyesh Bhandari

No, I meant Hacktivity like [this](https://hackerone.com/hacktivity/overview?queryString=disclosed%3Atrue&sortField=latest_disclosable_activity_at&sortDirection=DESC&pageIndex=0)

Hi @mtmk , I'm willing to contribute for this, currently looking at how it is implemented in [aspnetcore](https://github.com/search?q=repo%3Adotnet%2Faspnetcore+Metrics.cs&type=code).

Stumbled up on this issue when I tried to use current hosting model, quite surprised as it's been more than 2 years since HostApplicationBuilder has been implemented [here](https://github.com/dotnet/runtime/pull/65109), but hasn't...

Not only Gauge but other types in the namespace like MeterOptions, IMeterFactory that are unavailable below .net 8 are also showing up as available in .net 6 and 7. But...

Hey @mtmk @thompson-tomo, sorry I've been inactive, I won't be able to work on this.