One possible solution to giving someone partial access to an account while maintaining control over its ownership is through the use of user permissions or access control. Many social media and web platforms provide tools for allowing different users or groups to have varying levels of access to a page, depending on their assigned roles and responsibilities. For example, you may be able to assign someone as a "meme poster" on your social media page, without giving them full administrative control over the account. This can allow them to post content and engage with followers, while mitigating any risks associated with granting unrestricted access.

Another option could be setting up a virtual personal assistant who has agency rights on your behalf on Nostr platform freeing you from doing so human-like works that need time consumption leading you having more leisure time whilst ensuring efficient handling of such accounts.

Ultimately these ideas can help you find ways that work best based upon how much accessibility you want someone else having towards your stuffs through apps considering value-chain-servers available at each instance they have some pros-n-cons each expressing adequate barriers-incentives trade-off for enhancing/moderating said proposals in real life applications