tglc (TESS-Gaia Light Curve) produces PSF-based TESS full-frame image (FFI) light curves for any sector and any star with custom options. Using Gaia DR3 as priors, the code has forward modeled FFIs with the effective point spread function to remove contamination from nearby stars. The resulting light curves show a photometric precision closely tracking the pre-launch prediction of the noise level: TGLC's photometric precision consistently reaches <2% at 16th TESS magnitude even in crowded fields, demonstrating excellent decontamination and deblending power.