LEGAL / SOURCE CODE

Open-source code for NutsEmu

NutsEmu and the NutsEmu Companion use libraries licensed under the GNU LGPL. Here you can download, for every build we have distributed, the complete source of those libraries, every change we made to them, and the scripts and settings we built them with. Free, no login, no Patreon membership needed.

01 / DOWNLOADS BY BUILD

Source packages

Find your build number in NutsEmu (Settings → About) or in the Companion. Each build's packages stay here for at least three years after that build was last distributed.

Build	Date	Component	What's inside	Download	SHA-256
1337	2026-10-08	Wine 11.18 LGPL-2.1+	Upstream Wine 11.18 (tag wine-11.18, unmodified, including the code bundled in its tree) + every NutsEmu patch (dated), including NutsSync, + one combined as-built diff + the iOS compatibility layer compiled into Wine + the build script. NutsEmu's Wine changes are LGPL-2.1+ too.	part 1 · part 2 · part 3 45.8 MB, in three parts so it fits the host. Join with `cat wine-11.18-nutsemu-1337.tar.xz.part1 wine-11.18-nutsemu-1337.tar.xz.part2 wine-11.18-nutsemu-1337.tar.xz.part3 > wine-11.18-nutsemu-1337.tar.xz`. The checksum is of the joined file.	049aad9fdd6344f261b91a39bc2c624d4d66516dfdb529d0b10f023b37ad1d9a
		vkd3d-proton (commit 750061ae2b) LGPL-2.1+	Upstream source with all submodules + NutsEmu patches (dated) + combined as-built diff + build script and the header it uses	vkd3d-proton-750061ae2b-nutsemu-1337.tar.xz 23.7 MB	ed2bb83a2ddec2b95aff959c83657227da09d1646fdbb7613ab945b5d0357dd2
		GnuTLS 3.8.9 + libtasn1 + libunistring LGPL-2.1+ / LGPL-3.0+	Unmodified upstream release file (libtasn1 and libunistring are bundled in it) + build script with its configure flags	gnutls-3.8.9-libtasn1-libunistring-nutsemu-1337.tar.xz 6.5 MB	50c962207b1d8c9e9d358e14aaad2802e527e21475d235cf41dec50e77e2d933
		Nettle 3.10.1 + mini-GMP LGPL-3.0+ / GPL-2.0+	Unmodified upstream release file + build script with its configure flags	nettle-3.10.1-minigmp-nutsemu-1337.tar.xz 2.5 MB	3322fe4d5b3ad6252efe18fa2bcc18980d9415bf158522a4542de981bdec125b
		apple-codesign-quick 0.1.0 (Companion sign-in helper) LGPL-2.1+	The library source as built (one changed file) + the crates.io original + the diff + the helper's Cargo.toml/Cargo.lock + rebuild/relink steps. The helper's own source ships inside every Companion download (SigningSource).	apple-codesign-quick-0.1.0-nutsemu-companion-0.4.1.tar.xz 89 KB	1d5aafd51a0d00a69c8fe51c7250c317f6a508219fd4ec58c9e7a39b240ad174
		DXMT winemetal.dll relink objects MIT objects; links LGPL-2.1+ winecrt0	Object files of DXMT's winemetal.dll (ARM64EC and 32-bit x86) + exact link commands + relink script, to relink it with a modified Wine winecrt0 library (which it contains). No DXMT source.	dxmt-winemetal-relink-objects-1337.tar.xz 30 KB	58242d6530edfef4adf3d16db8c692f27d26493f48c0fa1b7984286a287a1425
		Build scripts and relinking guide covers all of the above	Toolchain versions, the configure command lines used, all build scripts, and how to put rebuilt libraries into NutsEmu.app and sign it with your own Apple ID	nutsemu-lgpl-build-1337.tar.xz 15 KB	81b9fdb4ad1796318ffb28d217c3e93ad6d80f2cce325ab7ac861323a2a8eb81
		SHA256SUMS	Checksums of every package for this build	SHA256SUMS-nutsemu-1337.txt	—

Verify a download with shasum -a 256 <file> (macOS) or sha256sum <file> (Linux) and compare it with the table.

What is and isn't here

This page carries what the LGPL requires: the LGPL libraries, our changes to them and how we built them. Our changes to Wine, including NutsSync (NutsEmu's in-process synchronization) and the iOS compatibility layer compiled into Wine, are published here under the GNU LGPL 2.1 or later. DXMT's winemetal.dll contains part of Wine's winecrt0 library, so its object files are here too, for relinking. The rest of NutsEmu's own code (the app, its drivers and the Companion) is proprietary and isn't published. Other components such as FEX-Emu, DXMT, Mesa, MoltenVK and FreeType are under permissive licenses (MIT, Apache-2.0, FTL) that don't require source code to be shared. Their notices and license texts are on the Licenses page.

02 / WRITTEN OFFER

Written offer

NutsEmu and NutsEmu Companion contain software licensed under the GNU Lesser General Public License version 2.1 (Wine, vkd3d-proton, GnuTLS, libtasn1, apple-codesign-quick) and version 3 (Nettle, mini-GMP, libunistring). Copies of those licenses and of the GNU GPL version 3 are in the licenses/ folder and on our Licenses page.

Where to get the source now. The complete corresponding machine-readable source code of these components for this build, with every change we made to them, the build scripts and configuration used, and the materials needed to relink our modules with modified versions of these libraries (including the object files of DXMT's winemetal.dll, which contains Wine's winecrt0), is available at no charge from:

https://nutsdeveloping.com/source

Find your build number in the table there. NutsEmu's packages end in -<build number>.tar.xz; the Companion's is apple-codesign-quick-0.1.0-nutsemu-companion-<Companion version>.tar.xz.

Written offer. For at least three (3) years after we last distribute this build, we will give anyone who received it (and, for the LGPL-3 components, anyone who has a copy of the object code) a complete copy of those materials on request. We will deliver them as a download, or on a physical medium for a charge no more than our cost of performing the distribution. Write to [email protected] and name the NutsEmu build number (shown in Settings → About and in the Companion).

Your rights. You may modify these libraries, rebuild them, replace them in the app, and re-sign the app with your own Apple ID. The NutsEmu license permits that and permits reverse engineering for debugging such modifications. See "How to replace a library" below.

How to replace a library in NutsEmu (summary; full steps in `RELINKING.md` in the `nutsemu-lgpl-build-<build number>` package)

Download the source for your build from https://nutsdeveloping.com/source, apply your changes, and build with the included scripts (the same toolchain versions are listed in BUILD-INFO.md).
Unzip NutsEmu.ipa and replace the library in Payload/NutsEmu.app/lib/wine*/… (e.g. aarch64-unix/libgnutls.30.dylib, aarch64-windows/*.dll, aarch64-unix/*.so). Replace it in every lib/wine* instance folder.
Re-sign the app (and its PlugIns/ and Extensions/ extensions) with your own Apple ID or developer certificate. You can use Xcode or any sideloading tool. Then install.

Statutory text (for reference)

LGPL-2.1 §6(c): "Accompany the work with a written offer, valid for at least three years, to give the same user the materials specified in Subsection 6a, above, for a charge no more than the cost of performing this distribution."
LGPL-2.1 §6(d): "If distribution of the work is made by offering access to copy from a designated place, offer equivalent access to copy the above specified materials from the same place."
GPL-3 §6(d) (applied through LGPL-3 §4(d)): "…the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements."