LIGHTS is an ultra-deep imaging survey that is 10 years ahead of the science to be done with the Vera Rubin Observatory. In this talk, I will update the current status of the survey with more than 25 nearby galaxies already observed with the LBT telescope in Arizona up to surface brightness ~31 mag/arcsec^2 in g and r bands. I will also discuss the ancillary very deep Halpha data obtained with the INT of these objects. LIGHTS is changing our traditional view of the nearby objects, in some cases nearly doubling the extension of what is was previously thought to be the stellar size of the objects. In this talk, I will focus in particular on how this survey is revealing the properties of galactic edges in unparalleled detail, allowing the characterisation of star-forming regions (and the inside-out propagation of star formation) down to unprecedented surface brightnesses. Finally, I will highlight the important lessons that LIGHTS is teaching us about the technical difficulties (and their solutions) that future ultra-deep surveys (such as LSST, Euclid, ARRAKIHS, Roman, etc.) will have to face.