Return to LGPL (#638)

`mergekit` is once again under the LGPL 3.0 license. Happy Halloween.

Author: cg123

LICENSE

@@ -1,72 +1,165 @@
-License text copyright (c) 2020 MariaDB Corporation Ab, All Rights Reserved.
-"Business Source License" is a trademark of MariaDB Corporation Ab.
-
-Parameters
-
-Licensor:             Arcee AI
-Licensed Work:        MergeKit Version 0.1.0 or later. The Licensed Work is (c) 2025
-                      Arcee AI.
-Additional Use Grant: You may make production use of the Licensed Work so long as
-                      you and your affiliates, considered both individually and in
-                      the aggregate, do not meet any of the following criteria:
-                      (i) have more than 100 total full-time equivalent employees
-                      and/or contractors, (ii) have more than USD $10 million in
-                      annual recurring revenue, (iii) make available products and
-                      services with more than 1 million daily active users, (iv) are
-                      a publicly traded company with a market capitalization of
-                      greater than USD $300 million, or (v) are a private company
-                      whose most recent financing post-money valuation was greater
-                      than USD $300 million.
-
-                      For clarity, the use of the Licensed Work to create models for
-                      production use constitutes production use.
-Change Date:          Two years from the date the Licensed Work is published.
-Change License:       GNU Lesser General Public License v3.0 or later
-
-For information about alternative licensing arrangements for the Licensed Work,
-please contact [email protected].
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-Notice
-
-Business Source License 1.1
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-works, redistribute, and make non-production use of the Licensed Work. The
-Licensor may make an Additional Use Grant, above, permitting limited production use.
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+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+  This version of the GNU Lesser General Public License incorporates
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+Library.

README.md

@@ -21,7 +21,6 @@
 - [Multi-Stage Merging (`mergekit-multi`)](#multi-stage-merging-mergekit-multi)
 - [Raw PyTorch Model Merging (`mergekit-pytorch`)](#raw-pytorch-model-merging-mergekit-pytorch)
 - [Tokenizer Transplantation (`mergekit-tokensurgeon`)](#tokenizer-transplantation-mergekit-tokensurgeon)
-- [Merge in the Cloud](#-merge-in-the-cloud-)
 - [Citation](#citation)
 
 ## Why Merge Models?
@@ -52,8 +51,6 @@ Key features of `mergekit` include:
 - [Multi-stage merging](#multi-stage-merging-mergekit-multi) for complex workflows.
 - [Merging of raw PyTorch models (`mergekit-pytorch`)](#raw-pytorch-model-merging-mergekit-pytorch).
 
-🌐 GUI Launch Alert 🤗 - We are excited to announce the launch of a mega-GPU backed graphical user interface for mergekit in Arcee! This GUI simplifies the merging process, making it more accessible to a broader audience. Check it out and contribute at the [Arcee App](https://app.arcee.ai). There is also a [Hugging Face Space](https://huggingface.co/mergekit-community) with limited amounts of GPUs.
-
 ## Installation
 
 ```sh
@@ -316,30 +313,6 @@ Use `mergekit-pytorch --help` for detailed options.
 
 `mergekit-tokensurgeon` is a specialized tool for transplanting tokenizers between models, allowing you to align the vocabulary of one model with another. This is particularly useful for cheaply producing draft models for speculative decoding or for cross-tokenizer knowledge distillation. See the [documentation](docs/tokensurgeon.md) for more details and how to use it.
 
-## ✨ Merge in the Cloud ✨
-
-We host merging on Arcee's cloud GPUs - you can launch a cloud merge in the [Arcee App](https://app.arcee.ai). Or through python - grab an ARCEE_API_KEY:
-
-`export ARCEE_API_KEY=<your-api-key>`
-`pip install -q arcee-py`
-
-```python
-import arcee
-arcee.merge_yaml("bio-merge","./examples/bio-merge.yml")
-```
-
-Check your merge status at the [Arcee App](https://app.arcee.ai)
-
-When complete, either deploy your merge:
-
-```python
-arcee.start_deployment("bio-merge", merging="bio-merge")
-```
-
-Or download your merge:
-
-`!arcee merging download bio-merge`
-
 ## Citation
 
 If you find `mergekit` useful in your research, please consider citing the [paper](https://aclanthology.org/2024.emnlp-industry.36/):

mergekit/architecture/__init__.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 import logging
 from functools import lru_cache

mergekit/architecture/auto.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 import logging
 import re

mergekit/architecture/base.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 from abc import ABC, abstractmethod
 from typing import Dict, List, Optional, Tuple

mergekit/architecture/json_definitions.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 import importlib
 import importlib.resources

mergekit/architecture/moe_defs.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 from typing import ClassVar, List, Optional
 

mergekit/card.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 import os
 from typing import Generator, List, Optional

mergekit/common.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 import binascii
 import logging

mergekit/config.py

@@ -1,5 +1,5 @@
 # Copyright (C) 2025 Arcee AI
-# SPDX-License-Identifier: BUSL-1.1
+# SPDX-License-Identifier: LGPL-3.0-only
 
 from typing import Any, Dict, Iterable, List, Optional, Tuple, Union