The more notable one was experimenting with LLMs as high level task planners for robots (https://hlfshell.ai/posts/llm-task-planner/).
The other is a golang based AI assistant, like everyone else is building. Worked over text, had some neat memory features. This was more of a "first pass" learning about LLM applications. (https://github.com/hlfshell/coppermind).
I plan to revisit LLMs as context enriched planners for robot task planning soon.