Open the file currently open in Xcode at the current editor location in Zed via Hammerspoon (~/.hammerspoon/init.lua)

init-hammerspoon-xcode-zed.lua

function dirname(path)
    return path:match("(.+)/[^/]*$")
end

hs.hotkey.bind({ "cmd", "alt", "ctrl" }, "Z", function()
    local xcode = hs.application.find("Xcode")
    if xcode and xcode:isFrontmost() then
        local script = [[
            tell application "Xcode"
                set docPath to path of document 1 whose name ends with (word -1 of (get name of window 1))
                set currentLines to selected paragraph range of document 1 whose name ends with (word -1 of (get name of window 1))
                set L1 to get item 1 of currentLines
                set L2 to get item 2 of currentLines
                set projPath to path of active workspace document
                return projPath & "," & docPath & ":" & L1 & ":" & L2
            end tell
        ]]

        local ok, result = hs.osascript.applescript(script)
        if ok then
            local parts = hs.fnutils.split(result, ",")
            local projPath = dirname(parts[1])
            local filePath = parts[2]
            hs.task.new("/opt/homebrew/bin/zed", nil, { projPath, filePath }):start()
        else
            hs.alert.show("Error retrieving paths: " .. (result or ""))
        end
    else
        hs.alert.show("Xcode not active")
    end
end)