Add "superpin" or "sticky" to hyprland as super + grave (floating and tiled windows move with workspaces)

superpin.lua

local superpin_windows = {}

---add or remove window from superpin list
---@param target_win HL.Window
local function toggle_superpin(target_win)
  if superpin_windows[target_win.address] then
    superpin_windows[target_win.address] = nil
    hl.notification.create({ text = "superpin off: " .. target_win.title, timeout = 2000 })
  else
    superpin_windows[target_win.address] = {
      win = target_win,
      at   = target_win.at,
      size = target_win.size,
    }
    hl.notification.create({ text = "superpin on: " .. target_win.title, timeout = 2000 })
  end
end

-- watch for workspace changes to ensure superpin windows follow
hl.on("workspace.active", function(ws)
  for _, stored in pairs(superpin_windows) do
    hl.dispatch(hl.dsp.window.move({ workspace = ws.id, window = stored.win, follow = false }))
  end
end)

-- clean up
hl.on("window.close", function(win)
  superpin_windows[win.address] = nil
end)

-- toggle superpin
hl.bind("SUPER + grave", function()
  local win = hl.get_active_window() --[[@as HL.Window]]
  toggle_superpin(win)
end)

-- helps restore original position and size
hl.on("window.update_rules", function(win)
  if win.floating then
    local stored = superpin_windows[win.address]
    if stored and stored.at and stored.size then
      hl.dispatch(hl.dsp.window.move({ x = stored.at.x, y = stored.at.y, window = win }))
      hl.dispatch(hl.dsp.window.resize({ x = stored.size.x, y = stored.size.y, window = win }))
    end
  end
end)