Is there a self-hosted AI environment that can evolve with its owner?

ChatGPT is already very useful to me, but I cannot give a single cloud service access to my entire digital life. Its standard integrations are safer, but often too restricted for serious personal automation. I am looking for something closer to a self-hosted personal AI environment than another assistant app. People change over time: their goals, interests, projects and routines change. Such an environment should continuously adapt with them. Its agents should be able to update and reorganize memory, create and test new skills, prompts, connectors and workflows, and retire or archive those that are no longer relevant. In other words, it should gradually reshape itself around its owner while keeping every significant change reviewable and reversible. My ideal setup would: keep memory, credentials and integrations under my control; use OpenAI, Anthropic, Google, open-weight or local models depending on the task; give each agent only the context and privileges it needs; run agents under different levels of isolation; version and log significant changes and actions. For example, one agent might analyze bank transactions in read-only mode, another work with email, and a coding agent modify selected repositories. No single model provider would need to see my complete personal context. I understand that such a system would be a high-value target for attackers. But meaningful personal automation requires access to sensitive context. The practical question is which risks each person is willing to accept and under what safeguards. Does anything reasonably mature already exist in this direction? Is anyone running a similar setup?