gui running in qemu

image/meta-layers/meta-fcb-looper/recipes-apps/gui-app/files/gui-app.service

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+[Unit]
+Description=FCB Looper GUI Application
+After=weston.service
+Wants=weston.service
+Requires=graphical.target
+
+[Service]
+Type=simple
+User=root
+Environment="WAYLAND_DISPLAY=wayland-0"
+Environment="XDG_RUNTIME_DIR=/run/user/0"
+Environment="RUST_LOG=info"
+ExecStartPre=/bin/sleep 3
+ExecStart=/usr/bin/gui
+Restart=always
+RestartSec=5
+WatchdogSec=30
+
+# Resource limits
+MemoryMax=256M
+CPUQuota=80%
+
+[Install]
+WantedBy=graphical.target

image/meta-layers/meta-fcb-looper/recipes-apps/gui-app/gui-app_1.0.bb

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+SUMMARY = "FCB Looper GUI Application"
+DESCRIPTION = "Rust egui GUI for FCB1010 looper pedal"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+inherit cargo_bin systemd externalsrc
+
+# Network access required for cargo dependencies (Yocto 4.0+)
+do_compile[network] = "1"
+
+# Remove debug function - clean recipe
+#CARGO_BUILD_FLAGS = "--target x86_64-poky-linux-gnu --release"
+
+# Use external source directory
+EXTERNALSRC = "/repo/gui"
+EXTERNALSRC_BUILD = "${WORKDIR}/build"
+
+# Disable externalsrc debug symlinks
+EXTERNALSRC_SYMLINKS = ""
+
+# Dependencies for GUI
+DEPENDS += "wayland wayland-protocols libxkbcommon fontconfig"
+RDEPENDS:${PN} += "weston liberation-fonts systemd"
+
+# Systemd service
+SRC_URI += "file://gui-app.service"
+
+do_install:append() {
+    install -d ${D}${systemd_system_unitdir}
+    install -m 0644 ${WORKDIR}/gui-app.service ${D}${systemd_system_unitdir}/
+}
+
+SYSTEMD_SERVICE:${PN} = "gui-app.service"
+SYSTEMD_AUTO_ENABLE:${PN} = "enable"
+
+FILES:${PN} += "${systemd_system_unitdir}/gui-app.service"