diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..ff02d63
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+aur/msdl-bin/PKGBUILD text eol=lf
+aur/msdl-bin/.SRCINFO text eol=lf
diff --git a/aur/msdl-bin/.SRCINFO b/aur/msdl-bin/.SRCINFO
new file mode 100644
index 0000000..32f6de2
--- /dev/null
+++ b/aur/msdl-bin/.SRCINFO
@@ -0,0 +1,16 @@
+pkgbase = msdl-bin
+	pkgdesc = Download Windows ISO files directly from Microsoft's servers
+	pkgver = 0.3.5
+	pkgrel = 1
+	url = https://msdl.tech-latest.com
+	arch = x86_64
+	arch = aarch64
+	license = MIT
+	provides = msdl
+	conflicts = msdl
+	source_x86_64 = msdl-bin-0.3.5-x86_64::https://github.com/starkSV/windows-iso-downloader/releases/download/cli%2Fv0.3.5/msdl-linux-amd64
+	sha256sums_x86_64 = dfb0648acd6caa79d597839bb9803c979446a2d77f90447273ee5003d8857c9d
+	source_aarch64 = msdl-bin-0.3.5-aarch64::https://github.com/starkSV/windows-iso-downloader/releases/download/cli%2Fv0.3.5/msdl-linux-arm64
+	sha256sums_aarch64 = 933beb694b3e59fc84cdccfb5cb3dfe48db3274046df88390cf8ee32070f4088
+
+pkgname = msdl-bin
diff --git a/aur/msdl-bin/README.md b/aur/msdl-bin/README.md
index f362553..a1aaad4 100644
--- a/aur/msdl-bin/README.md
+++ b/aur/msdl-bin/README.md
@@ -1,17 +1,24 @@
 # msdl-bin (AUR)
 
-`PKGBUILD` for the [msdl-bin](https://aur.archlinux.org/packages/msdl-bin) AUR package, tracked here so version bumps have the same history/review as the winget manifests.
+`PKGBUILD` and `.SRCINFO` for the [msdl-bin](https://aur.archlinux.org/packages/msdl-bin) AUR package, tracked here so version bumps have the same history/review as the winget manifests.
 
-This file is not auto-published — after editing it here, push it to the AUR repo manually from an Arch (or Arch container) environment:
+`.SRCINFO` is generated with the real `makepkg` tool (via an ephemeral `archlinux` Docker container — no VM or native Arch install needed) whenever `PKGBUILD` changes:
+
+```bash
+docker run --rm -v "$(pwd)":/pkg -w /pkg archlinux:latest bash -c "
+  useradd -m builder && chown -R builder:builder /pkg &&
+  pacman -Sy --noconfirm --needed base-devel &&
+  su builder -c 'makepkg --printsrcinfo' > .SRCINFO
+"
+```
+
+Publishing (requires an AUR account with an SSH key registered at aur.archlinux.org — this step can't be automated on someone else's behalf):
 
 ```bash
 git clone ssh://aur@aur.archlinux.org/msdl-bin.git
-cp PKGBUILD msdl-bin/
+cp PKGBUILD .SRCINFO msdl-bin/
 cd msdl-bin
-makepkg --printsrcinfo > .SRCINFO
 git add PKGBUILD .SRCINFO
 git commit -m "Update to <version>"
 git push
 ```
-
-Requires an AUR account with an SSH key registered at aur.archlinux.org.