First of all, I'd like to give credit to Halfmiss, for both providing the original deck this was based on, and suggesting the changes made to it.
I've always enjoyed both the maths-inspired aesthetics and the underdog nature of Tindangle as a deck, ever since it first appeared in Yu-Gi-Oh! VRAINS. With the release of Tindangle Jhrelth, the deck came together in a way that was surprisingly potent, though very much still casual. Before the most recent banlist as of writing, I used a Rokket package to make Chaos Ruler, the Chaotic Magical Dragon, to dig for Tindangles and send many useful cards to the Graveyard, such as Tindangle Delaunay and Tindangle Intruder. However, on the most recent banlist, Chaos Ruler has been Forbidden, so we're in search of a new supplement engine to support our underpowered and slow-to-start deck.
With the recent release of Krawler Soma, we can find our answer in FLIP synergies. By reducing its own Level to 2 and summoning two more Level 2 Krawlers, we have more than enough material to summon Ghostrick Socuteboss and utilise that engine to make Number F0: Utopic Draco Future. Furthermore, the search from the second copy of Ghostrick Angel of Mischief can be Ghostrick Scare, to flip up the spare Krawler, Soma's target from summoning, and any spare Tindangles we have sitting face-down.
The appeal of the Tindangle deck itself comes from Tindangle Delaunay. Its effect in the graveyard, combined with Intruder, means that you can very abruptly put up a wall of 3-4 FLIP monsters with sticky effects. It takes some set up to get going, and without a supplementary engine the first turn is anything but explosive, but if you manage to survive a few turns, the deck's grind game is unparalleled.
The selection of staples, and the layout in the Side Deck, are very rough. I don't currently play in the Yu-Gi-Oh! metagame, so I don't know what the best options are. These are mostly just holdovers from suggestions from others for old versions of the deck. If you want to play this deck more casually and remove things like hand traps and floodgates, I can suggest filling the space with Nagel's Protection, a Tindangle support card that benefits from being sent to the graveyard by Jhrelth, and Junk Sleep, a FLIP support card that lets you constantly re-use their effects. Also, Gergonne's End will rarely come up, but it's very funny when it does, and it enables the Link Material effect of Tindangle Trinity. Other options in the Extra Deck include Shaddoll Construct, for what is arguably the FLIP deck most often face-up, and it can Fusion Summon El Shaddoll Winda without any Main Deck investment.