When to start lifting more when cutting

As title says. I'm just curious if and when I should start lifting more while cutting.

I have recently (two months ago) started taking my health seriously. Just tired of living like a slug. I am a 26 yr old male. I am between 5'5"-5'6" and weighed just shy of 280, just two short months ago. Sad I know.

I have been doing at home (app-guided) calisthenics and eating right for the last two months. Just a simple high protein, low carb diet and in a deficit every day. Which has been working well. Yesterday I stepped on the scale and it read 240.8, in just two months.

My question is if and when I should start hitting the gym and moving weight to gain size. Also, if I will really even see any growth being in a constant deficit. Or, should I wait until I get closer to 200 before I start trying to build more muscle mass?