For a panel in Local application launch mode, download com.lg.app.signage.ipk and keep its name. Put it in a folder named application at the root of a FAT32 USB stick, then run Local Application Upgrade from USB on the panel.
Download com.lg.app.signage.ipk
For the panel's app menu or an SI server, download ScreenRig-webos.ipk.
Version 26.10.1079. SHA-256 cc23869e0b7d1f52ddbb4ab60a06b2da760e44d6e80daf4f35ae54cf3dd274af for com.lg.app.signage.ipk and 4e776a0ebffe2ed01a2e73cbecadaf29d72144a9204402265e7d3d0bfce45350 for ScreenRig-webos.ipk. Checksums are in SHA256SUMS.
Install path: Player guide.