Write blog post about source nodes support

[tatiana]

Context

@arojasb3 and @pankajastro have done amazing work resurrecting #661 and working on #1107, and it would be great to see a blog post about this new feature.

Check with @arojasb3 if he'd like to author or co-author this.

Acceptance criteria

• Write a blog post that walks through the feature/benefit

[dosubot]

Hi, @tatiana. I'm helping the Cosmos team manage their backlog and am marking this issue as stale.

You opened this issue to propose writing a blog post about the new source nodes support feature, highlighting the contributions of @arojasb3 and @pankajastro. You mentioned coordinating with @arojasb3 for potential co-authorship, but there haven't been any additional comments or developments since then.

Could you please let us know if this issue is still relevant to the latest version of the Cosmos repository? If it is, feel free to comment here to keep it open. Otherwise, you can close the issue yourself, or it will be automatically closed in 7 days. Thank you!