Licenses¶
The code of sbmlsim-core is MIT licensed (LICENSE, Copyright (c) 2026 Matthias König).
engine.wasm statically links libraries which the crate sbmlsim-csolvers compiles from the git submodules in third_party:
| library | version | license |
|---|---|---|
| SUNDIALS (CVODE and its vectors, matrices and linear solvers) | 7.9.0 | BSD-3-Clause |
| KLU (SuiteSparse 7.14.1) | 2.3.6 | LGPL-2.1-or-later |
| BTF (SuiteSparse 7.14.1) | 2.3.3 | LGPL-2.1-or-later |
| AMD (SuiteSparse 7.14.1) | 3.3.4 | BSD-3-Clause |
| COLAMD (SuiteSparse 7.14.1) | 3.3.5 | BSD-3-Clause |
| SuiteSparse_config | 7.14.1 | BSD-3-Clause |
So engine.wasm is under MIT AND BSD-3-Clause AND LGPL-2.1-or-later, and so are the packages which build or contain it: sbmlsim-csolvers, sbmlsim-host and sbmlsim-cli (which embed engine.wasm) and the JavaScript package, whose runtime is engine.wasm. A page which serves engine.wasm distributes it under these licenses.
KLU and BTF are under the GNU Lesser General Public License 2.1 or later and are linked statically into engine.wasm. Their complete source is in the submodule, and the complete source of engine.wasm and its build are in the repository (cargo build, or SBMLSIM_CORE_WASM_DIR for an engine.wasm built otherwise), so a recipient can modify KLU or BTF, build engine.wasm again and use it with the hosts in place of the distributed one.
Also compiled into the modules, under permissive licenses whose texts are in their sources: the Rust standard library (MIT OR Apache-2.0); in engine.wasm the crates serde, serde_json, itoa, rand_core, rand_pcg and thiserror (MIT OR Apache-2.0), memchr (Unlicense OR MIT) and zmij (MIT), and wasi-libc (Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT, with parts of musl under MIT); in mathlib.wasm the crate libm (MIT). model.wasm contains no third-party code.
Third-party notices¶
THIRD_PARTY.md in the root of the repository has the versions, the commits of the submodules, the complete license texts and how to rebuild engine.wasm with a modified KLU or BTF. sbmlsim-core runtime -o DIR writes it next to engine.wasm and mathlib.wasm, so a page which serves the runtime can serve its notices next to it, and sbmlsim_host::THIRD_PARTY_NOTICES is its text.