Very nice.  I have a slightly different version.  
- I usually use pork belly.  Fat is king 

.
- I marinate the pork in soy sauce longer.  Usually overnight.  This guarantee the meat and fat absorbs the soy sauce. I also include the crushed garlic (garlic skin included) and cracked pepper in the marinade.
- I don't use calamansi.  
Cooking is similar as to how you describe. 
I have another version.  
Prepare and cook the meat as describe above.
In a separate pan, saute some garlic (amount will depend on how strong the garlic taste you want).  When garlic is almost brown, add cooked meat making sure very little sauce/liquid gets into the pan.  Fry each side of meat until you see some darkening.  When all the meat are fried, pour the remaining sauce/liquid.  Mix.  Turn of heat.  Cover.  Serve with steamed rice.