pi.dev with

"packages": [ "npm:context-mode", "npm:pi-subagents", "npm:pi-web-access", "npm:pi-bar", "npm:pi-opencode-bridge", "npm:@ssweens/pi-leash", "npm:pi-caveman", "npm:@ff-labs/pi-fff", "npm:pi-ui-hephaestus", "npm:@alexanderfortin/pi-zai-usage", "npm:pi-cache-optimizer", "npm:@hypabolic/pi-hypa" ]

I've been mostly drawn to pi simply because I can modify it so easily to have extensions or behavior I want.

You need a harness? Does llama include one?

opencode, pretty good setup out of the box, no need to go through and find packages for the basics like pi

there are MCP/skills for browser integration that work in any harness