This is a kitchen sink pack made from a bunch of mods that I've played with over the years before finally making a jump to Minecraft 1.15+ in a few months. Intended for me and some friends, but anyone can feel free to download it. Most mods are generally left to their own devices, with minimal gating between mods, and a few config tweaks here and there to keep each mod from forcing a player to use it. The biggest example of this is reducing NuclearCraft's radiation levels overall, and removing them from structures, while increasing the rate it dissipates to prevent passive buildup.
The pack includes big mods like Advanced Rocketry, Ender IO, the Thermal Series, and Immersive Engineering on the tech side of things. With big magic mods like Bewitchment, Embers, Roots, and my favorite, Thaumcraft with a bunch of addon mods for it too. Also comes with an assortment of dimension mods for those players who love exploring, Atum, The Betweenlands, and the Twilight Forest. Finally there are some quality of life mods, and misc mods that are fairly numerous to name. Includes some custom scripts through ModTweaker and CraftTweaker to help better integrate the mods with one another where it makes sense they should.