While loading the mod, the game freezes.

There might be some inefficient code that takes exponentially longer if many recipes or technologies are added. Can you tell me what other mods are loaded and which settings you used if they differ from the default, so that I can replicate the issue on my system. How long did you wait?

edit: to clarify, I did not intentionally write inefficient code nor am I aware of a particular shortcoming of my code. However, that is currently my only idea on what could cause this barring any further information.

base
elevated-rails
quality
space-age
AbandonedRuins20
Aircraft-space-age
alien-biomes-graphics
alternate-alert-icons
auto_sort_chests
bioprocessing-tab
bobassembly
bobelectronics
bobenemies
bobequipment
bobgreenhouse
bobinserters
boblibrary
boblogistics
bobmining
bobores
bobplates
bobpower
bobtech
bobvehicleequipment
bobwarfare
Cerys-Moon-of-Fulgora
CleanFloor
combre
corrundum
crafting-efficiency-2
custom-map-colors
Delete-Chunk-Tool
discovery_tree
DoubleSpeedBelts
enhanced-shadows
even-distribution
factorissimo-2-notnotmelon
fdsl
FilterHelper
Flare Stack
flib
god-module
heat_glow
helmod
inserter-throughput
inserter-throughput-lib
inventory-repair
kry_stdlib
loaders-modernized
MegaBotStart
Mining_Drones
more-minimap-autohide-017
muluna-graphics
muluna-utility-constants
OrphanFinderFixed
PipeVisualizer-Updated
planet-muluna
Planetary-Distance-Adjustments
PlanetsLib
prismatic-belts
prismatic-belts-space-age
RateCalculator
RealisticDecorationCleanup
Redrawn-Space-Connections
request_setter
Research_Productivity
reskins-bobs
reskins-compatibility
reskins-library
reverse-factory
RPGsystem
rus-perevod
science-tab
Shortcuts-ick
show-max-underground-distance
Silly-AbandonedRuins-2-0
solar-productivity
squeak-through-2
StatsGui
tile-upgrade-planner-muluna
Unichest
Unipipe
valves
VoidChestInstant
Warehousing
Waterfill_v17

Game settings - maximum
Mod settings - default

I waited for a long time, and through the Task Manager I noticed that the game had frozen and was not doing anything.

Wow, that's quite a list of mods :D
It has something to do with Muluna, which was working before. I'm investigating this further and will push an update once I figure it out.
Out of curiousity, why are you using both Crafting Efficiency and my mod?

Got it.
Thanks.
Need more productivity))) I just forgot to turn it off.

I've found the issue. The mod Planet Muluna changes a few things in the technology tree and temporarily created a loop which made the startup of my mod run in circles trying to determine prerequisites. I need to rewrite some code to accelerate startup, but that will take a few days.
In the meantime, v1.0.6 is available which fixes the freeze by adding Muluna as an optional dependency.

Got it, thanks for the answer and work!