After a long time, I've finally had the time to make a 1.12.2 modpack to backup my 1.10 pack I made a very long time ago. Just like that one, this modpack is loaded with mods that "should" keep you busy for days and some interesting mods that I somehow made to work together to have fun things. Please feel free to let me know if anything should be added or if it breaks on people. :)

Mod List:

Actually Additions
Advanced Generators
AE2 Stuff
AIOT Botania
AmbientSounds 3
Antique Atlas
AppleCore
AppleSkinApplied Energistics 2
Aquaculture 2
Aroma1997Core
Aroma1997s Dimensional World
Astral Sorcery
Atlas Extras
AtomicStryker's Infernal Mobs
AttributeFix
AutoRegLib
Bad Wither No Cookie - Reloaded
Baubles
BdLib
Better Builder's Wands
BetterFps
BiblioCraft
Biomes O' Plenty
Blood Magic
Bonsai Trees 2
Bookshelf
Born in a Barn
Botania
Brandon's Core
Building Gadgets
BurnBabyBurn
Carry On
Chameleon
Chickens
Chisel
Chisels & Bits
CodeChicken Lib 1.8.+
CoFH Core
CoFH World
Comforts
Compact Machines
ConnectedTexturesMod
Controlling
Cooking for Blockheads
Crafting Tweaks
CraftTweaker
Cucumber Library
Cyclic
Cyclops Core
Dark Utilities
Draconic Evolution
DrCyano's Lootable Bodies
Dynamic Sword Skills
Dynamic Trees
Enchantment Descriptions
Ender IO
Ender Storage 1.8.+
Ender Utilities
EnderCore
Extra Utilities
ExtraBotany
ExtraCells2
Extreme Animals
Extreme Reactors
Farming For Blockheads
Fast Lead Decay
Forestry
Forge MultiPart CBE
ForgeEndertech
FTB Library
Game Stages
Gendustry
Guide-API
Hwyla
Ice and Fire: Dragons in a whole new light!
Immersive Engineering
Industrial Craft
Industrial Foregoing
Integration Foregoing
Inventory Tweaks
Iron Backpacks
Iron Chests
JEI Bees
JourneyMap
Just Enough Energistics (JEE)
Just Enough Items (JEI)
Just Enough Resources (JER)
LLibrary
Magic Bees
MalisisCore
MalisisDoors
Mantle
McJtyLib
Mekanism
Mekanism Generators
Mekanism Tools
MK: Ultra
MK: Ultra Compatibility
Mod Name Tooltip
ModTweaker
More Chickens
More Overlays
Morpheus
Mouse Tweaks
MrCrayfish's Furniture Mod
MTLib
Mystical Agradditions
Mystical Agriculture
Neat
Netherending Ores
NetherPortalFix
OpenBlocks
OpenModsLib
Ore Excavation
Ore Excavation Integration
OreBerries
OreLib
Pam's HarvestCraft
Placebo
PlusTiC
Pollution of the Realms
Realistic Terrain Generation
RealSerene
Redstone Flux
Refined Storage
RFTools
RFTools Power
Roguelike Dungeons
Roost
Rustic
Shadowfact's Forgelin
Simple Gravel Ores
Simple RPG Skills
Skill Tree Mod
Snad
Storage Drawers
Storage Drawers Extras
SwingThroughGrass
SwordSkillsAPI
TargetingAPI
Tesla Core Lib
Thaumcraft
Thaumic Inventory Scanning (Thaumcraft Addon)
The Lost Cities
The One Probe
Thermal Cultivation
Thermal Dynamics
Thermal Expansion
Thermal Foundation
Thermal Innovation
Tinkers Construct
Tinkers' Tool Leveling
Tiny Progressions
TipTheScales
Toast Control
Translocators 1.8.+
UniDict
Waila Harvestability
Waila Stages
WanionLib
Wawla - What Are We Looking At
Waystones
ZeroCore

Foxglove Brouhaha 2

Actually Additions

Advanced Generators

AE2 Stuff

AIOT Botania

AmbientSounds 6

Antique Atlas

AppleCore

AppleSkin

Applied Energistics 2

Aquaculture 2

Aroma1997Core

Aroma1997s Dimensional World

Astral Sorcery

Atlas Extras

AtomicStryker's Infernal Mobs

AttributeFix

AutoRegLib

Bad Wither No Cookie - Reloaded

Baubles

BdLib