Update to v1.0.81

.SRCINFO

@@ -1,6 +1,6 @@
 pkgbase = opencode
 	pkgdesc = The AI coding agent built for the terminal.
-	pkgver = 1.0.78
+	pkgver = 1.0.81
 	pkgrel = 1
 	url = https://github.com/sst/opencode
 	arch = aarch64
@@ -15,7 +15,7 @@ pkgbase = opencode
 	conflicts = opencode-bin
 	options = !debug
 	options = !strip
-	source = opencode-1.0.78.tar.gz::https://github.com/sst/opencode/archive/v1.0.78.tar.gz
+	source = opencode-1.0.81.tar.gz::https://github.com/sst/opencode/archive/v1.0.81.tar.gz
 	sha256sums = SKIP
 
 pkgname = opencode

PKGBUILD

@@ -2,7 +2,7 @@
 # Maintainer: adam
 
 pkgname='opencode'
-pkgver=1.0.78
+pkgver=1.0.81
 _subver=
 options=('!debug' '!strip')
 pkgrel=1
@@ -22,10 +22,37 @@ build() {
   cd "opencode-${pkgver}"
   bun install
   cd ./packages/opencode
-  OPENCODE_CHANNEL=latest OPENCODE_VERSION=1.0.78 bun run ./script/build.ts --single
+  OPENCODE_CHANNEL=latest OPENCODE_VERSION=1.0.81 bun run ./script/build.ts --single
 }
 
 package() {
   cd "opencode-${pkgver}/packages/opencode"
-  install -Dm755 $(find dist/*/bin/opencode) "${pkgdir}/usr/bin/opencode"
+  mkdir -p "${pkgdir}/usr/bin"
+  target_arch="x64"
+  case "$CARCH" in
+    x86_64) target_arch="x64" ;;
+    aarch64) target_arch="arm64" ;;
+    *) printf "unsupported architecture: %s\n" "$CARCH" >&2 ; return 1 ;;
+  esac
+  libc=""
+  if command -v ldd >/dev/null 2>&1; then
+    if ldd --version 2>&1 | grep -qi musl; then
+      libc="-musl"
+    fi
+  fi
+  if [ -z "$libc" ] && ls /lib/ld-musl-* >/dev/null 2>&1; then
+    libc="-musl"
+  fi
+  base=""
+  if [ "$target_arch" = "x64" ]; then
+    if ! grep -qi avx2 /proc/cpuinfo 2>/dev/null; then
+      base="-baseline"
+    fi
+  fi
+  bin="dist/opencode-linux-${target_arch}${base}${libc}/bin/opencode"
+  if [ ! -f "$bin" ]; then
+    printf "unable to find binary for %s%s%s\n" "$target_arch" "$base" "$libc" >&2
+    return 1
+  fi
+  install -Dm755 "$bin" "${pkgdir}/usr/bin/opencode"
 }