No, I don't think so.
I've always been able to get achievements, and I'm always testing one mod or another.

would this disable achievements at all? thank you

Updated for patch 1.25

Event mods have to follow the Event xml structure as laid out on the Modding wiki. Anything is possible to be coded within the file as you see fit. However, this file cannot be changed "on the fly", if that is what you meant by a config file. The Event xml code has to be "compiled" by the modtool into a .mod file for the game to recognize and load it.

For this particular mod, I decided to add both a positive and negative outcomes, in line with all the game's events and quests mechanic.

Having said that, it is of course possible to brute force your way to mod the game via any 3rd party tools like harmony, bepinex, mod.io toolkits (and its brethren) and any cheats/trainers-like things. It's all a matter of what the mod author wants to use and in turn, to be locked-in to, when game and not the mod kit gets updated and vice versa.

I don't know if it's possible with how mods are integrated into the game, but can a config file be added. a "Windfall" (ie a POSITIVE prize) should never be negative...

Mod updated. Note the building trigger has now been changed.

Ohh! Intriguing suggestion!

I'll take a look into the Happiness mechanism as it is now to see how, or if, it is even moddable.

But don't expect new mods or updated ones anytime soon, with upcoming 1.0 release just announced. Which promised to be a lot of hefty changes to the code.

And even then, I'll have to wait for the updated modtool code to be made available after the 1.0 release is launched.

Could you make a mod that reduces or removes the happiness loss from colonist death from old age?

Added link to Google Sheet for help in translating text. Thanks, all.