Planning to add duration and lock in high rates

To prepare for a potential rate cut, I'm monitoring economic indicators and adjusting portfolio allocations and plan to add duration to lock in rates at attractive yields, positioning to benefit from rising bond prices.
Recently, yields have already move down a lot, so I plan to invest in bonds when long-end yields reach a slightly more attractive levels, ensuring better risk-adjusted returns.

Unfortunately I did not had any exposure to US Treasuries and bond funds prior to this, as I'm currently overweight cash, but I'm looking to shift to longer-duration assets, whenever given the opportunity, especially if yields rise to more attractive levels