MariesLib

I wanted to pull out all the reusable code From Nourished, and place it in one library. MariesLib This is a shared Lib behind Marie's mods.

It handles the hard problems, auto-classifying thousands of items from modded content, three-tier compat with modpack overrides, player tracking with memory and decay, datapack tooling with validation, Dynamic UI and more, so consuming mods can focus on gameplay.

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MariesLib 0.1.1-beta is still under development.

Development is ongoing as more systems are being refined, expanded, and stabilized. Recent work has focused on improving the underlying framework, APIs, registries, and developer tooling to provide a stronger foundation for future Marie mods.

More updates will be shared as development progresses.

Version 0.1.1-beta.4 has been split into four modules:

• marie-core
• marie-commands
• marie-resources
• marie-ui

This modular structure will make future maintenance easier, improve organization, and allow individual systems to evolve more independently.

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Community

Discord Channel

Questions, suggestions, and development discussions are welcome.

A lot of the bug fixes and new features came from here.

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Do you need to install this?

Yes: if you use a mod that depends on it.

Mod loaders and launchers that resolve dependencies automatically should pull MarieLib in for you. If Nourished fails to load, check that MarieLib is present and up to date.

For mod developers

• Every Marie mod requires MariesLib as a separate mod on the classpath. There is no JarJar bundling. Declare marieslib as a required dependency and wire your runtime through MarieLibContext at bootstrap.

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What it provides

MariesLib handles shared infrastructure so Marie mods can focus on gameplay:

System	What it does
Classification	Runtime source resolution, scanner tooling, and classification traces
Compat discovery	Three-tier compatibility registry with modpack overrides
Registry lifecycle	Lifecycle-aware registries with snapshots and reload support
Tracking & values	Player value tracking, memory windows, decay, and effect hooks
Diagnostics	Datapack validation, unknown-item logging, and debug commands
Config tooling	Presets, import/export, share codes, and module locks
Utilities	JSON helpers, bounded LRU cache, running averages, validation

It is designed to stay lightweight, modular, and reusable—a foundation rather than a gameplay framework.

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The classification pipeline

This is the core of MariesLib.

When a consuming mod needs to reason about a source it has never seen before, MariesLib resolves it through staged runtime logic:

• Runtime resolution: with caching and cascade fallbacks
• Token normalization: for domain-specific source vocabulary
• Recipe inheritance: and multi-value blending where configured
• Override registries: via config/<modid>/source_overrides.json
• Classification traces: so developers can inspect why a source resolved the way it did

There is also a developer-facing scanner for bulk analysis of unclassified sources. In current Marie mods, that means items with FoodProperties, such as Nourished’s food classification workflow. It is not a player-facing gameplay feature.

The exact pipeline is determined by the consuming mod. MariesLib provides the infrastructure; gameplay decisions remain the responsibility of the mod using it.

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Broad mod compatibility

MariesLib uses a three-tier compat system:

Tier	Source	Notes
1	data/<modid>/compat/compat_registry.json in the consuming mod	Base registry
2	data/<other_modid>/marie_compat.json from loaded mods	Mod-provided declarations
3	config/<modid>/compat_overrides.json	Modpack overrides

Later tiers merge into earlier entries rather than replacing them wholesale. That gives mod authors, addon authors, and modpack creators a predictable override path without recompiling.

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Mods built on MariesLib

Mod	Description
Nourished	Nutrition mod for NeoForge 1.21.1
ProjecT E Extended Life	(Planned)
Thermal Systems	(Wip)

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For mod developers

MariesLib exposes a public API through MarieAPI:

float level = MarieAPI.getValueLevel(player, "Item");
MarieAPI.registerValue(definition);
MarieAPI.registerCompatEntry(definition);
MarieAPI.registerCustomEffect(thresholdEffect);