diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..93bbdeb9
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Leo Robinovitch
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index 613ef9dd..1987850d 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,16 @@
 
 ***
 
-The source code for [thermalmodel.com](https://thermalmodel.com).
+This repository contains the source code for [thermalmodel.com](https://thermalmodel.com).
+
+Engineers often use models to answer electromechanical design questions about heat transfer and temperature. [Thermalmodel.com](https://thermalmodel.com)
+aims to fill the gap between [back-of-the-envelope-calculations](https://en.wikipedia.org/wiki/Back-of-the-envelope_calculation)
+and complex, expensive tools like [Ansys](https://www.ansys.com/).
+
+The tool will stay free, open source, ad-free, tracking-free, MIT-licensed and backward compatible with any new features.
+If you appreciate the work, you can [donate here](https://ko-fi.com/robinovitch61).
 
 Core model math is encompassed in the [hotstuff-network](https://github.com/robinovitch61/hotstuff/tree/main/packages/hotstuff-network) package
 and can be used in any javascript environment. Usage examples in the [README](https://github.com/robinovitch61/hotstuff/tree/main/packages/hotstuff-network#usage).
 
-For feature requests or bug reports, feel free to [open an issue](https://github.com/robinovitch61/hotstuff/issues/new).
+For feature requests or bug reports, please [open an issue](https://github.com/robinovitch61/hotstuff/issues/new).
diff --git a/packages/hotstuff-network/LICENSE b/packages/hotstuff-network/LICENSE
new file mode 100644
index 00000000..93bbdeb9
--- /dev/null
+++ b/packages/hotstuff-network/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Leo Robinovitch
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.