Did video game music concerts for a while, which were reasonably succesful, but eventually stopped. Afterwards got his hands on the Intellisivion brand and ip, became CEO and spokesperson for the new Intellivision company, "producing" the Intellivision Amico, ostensibly a budget family console but by all accounts actually a 250$ horrendously outdated shovelware machine. I say "producing" because the thing was supposed to have released a couple years ago, and Tallarico et al. have been very avoidant about showing any actual hardware, or actual games, or actual games running on actual hardware, at least not to the wider public (more on that later). The whole thing is just really suspicious and skeevy.
Suffice to say, people were sceptical, save for Tallarico's rabbid fanbase on the Atari Age forum, where gaming peaked in the early 80's. Then more news started leaking out. Some youtubers got to see some stuff, and were less than impressed, and publicly voiced this. Tallarico, possessed of an ego befitting the cousin of Steven Tyler of Aerosmith, did not take this well, and went on petty rants complaining of cancel culture, liberals, big tech, yadda yadda. Then they accidentally posted the (laughably weak) hardware specs on their website, a kotaku journo spotted these and wrote an article about it. Tallarico responded by threatening legal action. Anyway, stuff like this kept on going: deadlines got missed with nothing to show, and whenever things were shown, they were underwhelming. Whenever people called Tallarico out on this, que more tirades, occasionally of the sexist, racist or otherwise bigoted variety. Except his Atari Age fanboys, who kept worshipping the ground he walked on.
Anyway, as time went by, Tallarico started positioning the Amico more and more as a console for the anti-woke crowd, for people who don't like how woke and political gaming has gotten. Promoting his dinky console at right-leaning gaming events, to a limited audience of fans, who of course raved about the thoroughly underwhelming shit they saw because they were A) friends of Tallarico, B) had financial ties to Tallarico, or C) cuz it was owning the libs ... somehow. Because yes, if you hadn't surmised that yet, Tallarico seems to lean rather heavily towards that side of the spectrum. As does his fanbase.
TLDR: has-been video game music fell into alt-right rabbit hole, lives in fanboy bubble, trying to hawk/grift piece of shit console.