Oh, FFS. I tried to avoid the inauguration entirely, but since we're dealing with the OAFPOTUS again, I couldn't. Especially because of 3rd grader Elon Musk.
The OAFPOTUS's second inaugural address was the longest in modern history. If you really want to read the text, the New York Times has annotated it, but I wouldn't recommend it. James Fallows read it so you don't have to:
Donald Trump, as 5th-grader. Sometimes Trump’s formal speeches are “written,” in the sense of trying to have “eloquent” or “fine writing” passages. But these “fancy” parts of a speech—related to the parts we remember as the only thing we have to fear is fear itself, or Mr. Gorbachev, tear down this wall—are clearly tough sledding for Trump. You can tell that he plods his way through these obligatory passages, in the fashion of a fifth-grader called upon to read to the classroom from an assigned text. Halting, not sure of the words, pausing from time to time at a passage he’d never seen before, as if to say, “Hey, that’s interesting!”
The absolutely stupidest part of this speech was this. Any other public official would be embarrassed even to say something of this sort:
We are going to be changing the name of the Gulf of Mexico to the Gulf of America.
If your second grader gave you this thought, you’d be having a little talk about how history and geography worked.
But second prize for stupidness goes to this, about Panama.
The speech did not get better. Shortly afterward, Elon Musk did this:

Well, that was certainly a departure from the usual nihilism of the incoming administration. Walter wasn't completely wrong, either. But yeah, Musk heiled the crowd:
Back in the first Trump presidency Trump’s critics spent an inordinate amount of time trying to get Trumpers to admit they’d done this or that, to apologize, whatever. This was always a mistake. I don’t need anyone to validate what I saw. I saw it. I don’t care what the explanation is. These are just twisted anti-American degenerates. We know this. Just what level of exuberant disinhibition led Musk to this moment or why this unmistakable gesture came so naturally to him … well, that’s really not my problem. Everyone knows what they saw here.
Then, shortly after that, the OAFPOTUS pardoned or commuted the sentences of 1,500 insurrectionists who invaded the US Capitol and killed cops:
At the time Trump issued the pardons, there were about 700 defendants who either never received prison sentences or had already completed their sentences, meaning pardons or commutations would have little practical impact on them, beyond restoring voting rights and gun rights for those who were convicted of felonies.
More than 600 people were sentenced to incarceration, but only a small fraction of them are still behind bars. Many of those who are in the custody of the federal Bureau of Prisons were convicted of violent attacks on police officers protecting the Capitol during an assault in which Jan. 6 defendants were armed with firearms, stun guns, flagpoles, fire extinguishers, bike racks, batons, a metal whip, office furniture, pepper spray, bear spray, a tomahawk ax, a hatchet, a hockey stick, knuckle gloves, a baseball bat, a massive “Trump” billboard, “Trump” flags, a pitchfork, pieces of lumber, crutches and even an explosive device.
More than 140 police officers were injured and several Trump supporters died during the attack, including one who was shot trying to breach the House Speaker's Lobby and another who died in the middle of a brutal battle at the lower west tunnel, where some of the worst violence of the day took place.
Like I said, I don't really care about the OAFPOTUS's lies and bullshitting. I do care what he does, and what his toadies do when they have actual power. The first few hours of this presidency did not instill confidence.