I am not familiar with OpenSUSE, but my Fedora 40 system has these packages installed, satisfying the RTM dependencies:

at-spi2-core-2.52.0-1.fc40.x86_64
libXtst-1.2.5-1.fc40.x86_64
libnotify-0.8.3-3.fc40.x86_64
libuuid-2.40.1-1.fc40.x86_64

I checked the OpenSUSE repo and the packages are available. You need to install them. If I remember correctly the software installer on OpenSUSE is YaST.
https://en.opensuse.org/YaST_Software_Management

Hi bentb,
I think kev1n has covered what I would suggest: it should be possible to satisfy those dependencies manually and then the Remember The Milk app should work. Please let us know if you need any further help matching up the dependencies with what is available!

And sorry we don't currently have an OpenSUSE RPM available. I'll pass your scenario on to the development team! 💙

First, I apologize for the belated reply. Second tanks for the answers.
I have followed your suggestions and installed at-spi2-core for the Suse repository. The three other packages were already present but under slightly different names. E.g. libXtst is present as libXtst6. So I risked an eye and and installed using --nodeps.
When I run the installed package I get the same error messages as I got above going the Debian way:
libva error: vaGetDriverNames() failed with unknown libva error
libva error: vaGetDriverNames() failed with unknown libva error
libva error: vaGetDriverNames() failed with unknown libva error
[8106:0810/204919.833443:FATAL:gpu_data_manager_impl_private.cc(415)] GPU process isn't usable. Goodbye.
Trace/breakpoint trap (core dumped)

The 'funny' thing is, though, that when I run an ldd on the installed program, none of the three libs occur in the listing:
~> ldd $(which rememberthemilk)
linux-vdso.so.1 (0x00007ffcca946000)
libffmpeg.so => not found
libdl.so.2 => /lib64/libdl.so.2 (0x00007fc9291eb000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fc9291e8000)
libgobject-2.0.so.0 => /usr/lib64/libgobject-2.0.so.0 (0x00007fc920b82000)
libglib-2.0.so.0 => /usr/lib64/libglib-2.0.so.0 (0x00007fc920a3c000)
libxshmfence.so.1 => /usr/lib64/libxshmfence.so.1 (0x00007fc920800000)
libgio-2.0.so.0 => /usr/lib64/libgio-2.0.so.0 (0x00007fc920616000)
libnss3.so => /usr/lib64/libnss3.so (0x00007fc9204d9000)
libnssutil3.so => /usr/lib64/libnssutil3.so (0x00007fc920a09000)
libsmime3.so => /usr/lib64/libsmime3.so (0x00007fc9204ad000)
libnspr4.so => /usr/lib64/libnspr4.so (0x00007fc920200000)
libatk-1.0.so.0 => /usr/lib64/libatk-1.0.so.0 (0x00007fc920485000)
libatk-bridge-2.0.so.0 => /usr/lib64/libatk-bridge-2.0.so.0 (0x00007fc92044a000)
libdbus-1.so.3 => /usr/lib64/libdbus-1.so.3 (0x00007fc9201ad000)
libdrm.so.2 => /usr/lib64/libdrm.so.2 (0x00007fc920197000)
libgdk_pixbuf-2.0.so.0 => /usr/lib64/libgdk_pixbuf-2.0.so.0 (0x00007fc92016a000)
libgtk-3.so.0 => /usr/lib64/libgtk-3.so.0 (0x00007fc91f800000)
libgdk-3.so.0 => /usr/lib64/libgdk-3.so.0 (0x00007fc920070000)
libpango-1.0.so.0 => /usr/lib64/libpango-1.0.so.0 (0x00007fc920008000)
libcairo.so.2 => /usr/lib64/libcairo.so.2 (0x00007fc91f6cf000)
libm.so.6 => /lib64/libm.so.6 (0x00007fc91f5e5000)
libX11.so.6 => /usr/lib64/libX11.so.6 (0x00007fc91f4a2000)
libXcomposite.so.1 => /usr/lib64/libXcomposite.so.1 (0x00007fc91f200000)
libXdamage.so.1 => /usr/lib64/libXdamage.so.1 (0x00007fc91ee00000)
libXext.so.6 => /usr/lib64/libXext.so.6 (0x00007fc91ea00000)
libXfixes.so.3 => /usr/lib64/libXfixes.so.3 (0x00007fc91e600000)
libXrandr.so.2 => /usr/lib64/libXrandr.so.2 (0x00007fc91e200000)
libexpat.so.1 => /usr/lib64/libexpat.so.1 (0x00007fc91ffc9000)
libxcb.so.1 => /usr/lib64/libxcb.so.1 (0x00007fc91f478000)
libxkbcommon.so.0 => /usr/lib64/libxkbcommon.so.0 (0x00007fc91f433000)
libgbm.so.1 => /usr/lib64/libgbm.so.1 (0x00007fc91f412000)
libasound.so.2 => /usr/lib64/libasound.so.2 (0x00007fc91f0f7000)
libatspi.so.0 => /usr/lib64/libatspi.so.0 (0x00007fc91f0bd000)
libcups.so.2 => /usr/lib64/libcups.so.2 (0x00007fc91f02d000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fc91f009000)
libc.so.6 => /lib64/libc.so.6 (0x00007fc91de00000)
/lib64/ld-linux-x86-64.so.2 (0x00007fc9291f0000)
libffi.so.7 => /usr/lib64/libffi.so.7 (0x00007fc91da00000)
libpcre2-8.so.0 => /usr/lib64/libpcre2-8.so.0 (0x00007fc91ed44000)
libgmodule-2.0.so.0 => /usr/lib64/libgmodule-2.0.so.0 (0x00007fc920443000)
libz.so.1 => /usr/lib64/libz.so.1 (0x00007fc91ed2b000)
libmount.so.1 => /usr/lib64/libmount.so.1 (0x00007fc91ecbe000)
libselinux.so.1 => /usr/lib64/libselinux.so.1 (0x00007fc91ec91000)
libplc4.so => /usr/lib64/libplc4.so (0x00007fc91d600000)
libplds4.so => /usr/lib64/libplds4.so (0x00007fc91d200000)
librt.so.1 => /lib64/librt.so.1 (0x00007fc91f40f000)
libsystemd.so.0 => /usr/lib64/libsystemd.so.0 (0x00007fc91e8ff000)
libpng16.so.16 => /usr/lib64/libpng16.so.16 (0x00007fc91ec4d000)
libjpeg.so.8 => /usr/lib64/libjpeg.so.8 (0x00007fc91e852000)
libpangocairo-1.0.so.0 => /usr/lib64/libpangocairo-1.0.so.0 (0x00007fc91ec3e000)
libharfbuzz.so.0 => /usr/lib64/libharfbuzz.so.0 (0x00007fc91e49c000)
libpangoft2-1.0.so.0 => /usr/lib64/libpangoft2-1.0.so.0 (0x00007fc91ec26000)
libfontconfig.so.1 => /usr/lib64/libfontconfig.so.1 (0x00007fc91e809000)
libfribidi.so.0 => /usr/lib64/libfribidi.so.0 (0x00007fc91ce00000)
libcairo-gobject.so.2 => /usr/lib64/libcairo-gobject.so.2 (0x00007fc91f403000)
libepoxy.so.0 => /usr/lib64/libepoxy.so.0 (0x00007fc91e0cc000)
libXi.so.6 => /usr/lib64/libXi.so.6 (0x00007fc91ca00000)
libwayland-client.so.0 => /usr/lib64/libwayland-client.so.0 (0x00007fc91ec15000)
libwayland-cursor.so.0 => /usr/lib64/libwayland-cursor.so.0 (0x00007fc91e493000)
libwayland-egl.so.1 => /usr/lib64/libwayland-egl.so.1 (0x00007fc91f004000)
libXcursor.so.1 => /usr/lib64/libXcursor.so.1 (0x00007fc91c600000)
libXinerama.so.1 => /usr/lib64/libXinerama.so.1 (0x00007fc91c200000)
libthai.so.0 => /usr/lib64/libthai.so.0 (0x00007fc91be00000)
libfreetype.so.6 => /usr/lib64/libfreetype.so.6 (0x00007fc91ba00000)
libXrender.so.1 => /usr/lib64/libXrender.so.1 (0x00007fc91b600000)
libxcb-render.so.0 => /usr/lib64/libxcb-render.so.0 (0x00007fc91e485000)
libxcb-shm.so.0 => /usr/lib64/libxcb-shm.so.0 (0x00007fc91e481000)
libpixman-1.so.0 => /usr/lib64/libpixman-1.so.0 (0x00007fc91e40d000)
libXau.so.6 => /usr/lib64/libXau.so.6 (0x00007fc91b200000)
libwayland-server.so.0 => /usr/lib64/libwayland-server.so.0 (0x00007fc91e0b6000)
libxcb-randr.so.0 => /usr/lib64/libxcb-randr.so.0 (0x00007fc91e0a5000)
libgssapi_krb5.so.2 => /usr/lib64/libgssapi_krb5.so.2 (0x00007fc91e053000)
libgnutls.so.30 => /usr/lib64/libgnutls.so.30 (0x00007fc91ae00000)
libavahi-common.so.3 => /usr/lib64/libavahi-common.so.3 (0x00007fc91e045000)
libavahi-client.so.3 => /usr/lib64/libavahi-client.so.3 (0x00007fc91e033000)
libblkid.so.1 => /usr/lib64/libblkid.so.1 (0x00007fc91dda4000)
libcap.so.2 => /usr/lib64/libcap.so.2 (0x00007fc91e026000)
libgcrypt.so.20 => /usr/lib64/libgcrypt.so.20 (0x00007fc91dc5f000)
liblz4.so.1 => /usr/lib64/liblz4.so.1 (0x00007fc91dc3b000)
liblzma.so.5 => /usr/lib64/liblzma.so.5 (0x00007fc91d9b9000)
libzstd.so.1 => /usr/lib64/libzstd.so.1 (0x00007fc91d8fa000)
libgraphite2.so.3 => /usr/lib64/libgraphite2.so.3 (0x00007fc91dc17000)
libdatrie.so.1 => /usr/lib64/libdatrie.so.1 (0x00007fc91aa00000)
libbz2.so.1 => /usr/lib64/libbz2.so.1 (0x00007fc91a600000)
libkrb5.so.3 => /usr/lib64/libkrb5.so.3 (0x00007fc91d81f000)
libk5crypto.so.3 => /usr/lib64/libk5crypto.so.3 (0x00007fc91d808000)
libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007fc91e01f000)
libkrb5support.so.0 => /usr/lib64/libkrb5support.so.0 (0x00007fc91d5f1000)
libjitterentropy.so.3 => /usr/lib64/libjitterentropy.so.3 (0x00007fc91e015000)
libp11-kit.so.0 => /usr/lib64/libp11-kit.so.0 (0x00007fc91d4be000)
libidn2.so.0 => /usr/lib64/libidn2.so.0 (0x00007fc91a200000)
libunistring.so.2 => /usr/lib64/libunistring.so.2 (0x00007fc919e00000)
libtasn1.so.6 => /usr/lib64/libtasn1.so.6 (0x00007fc919a00000)
libnettle.so.8 => /usr/lib64/libnettle.so.8 (0x00007fc91d46c000)
libhogweed.so.6 => /usr/lib64/libhogweed.so.6 (0x00007fc91d422000)
libgmp.so.10 => /usr/lib64/libgmp.so.10 (0x00007fc919600000)
libgpg-error.so.0 => /usr/lib64/libgpg-error.so.0 (0x00007fc91d1da000)
libkeyutils.so.1 => /usr/lib64/libkeyutils.so.1 (0x00007fc919200000)
libresolv.so.2 => /lib64/libresolv.so.2 (0x00007fc91d410000)
libcrypto.so.3 => /usr/lib64/libcrypto.so.3 (0x00007fc918c00000)

I have considered manually adding appropriate links to the libraries, but that doesn't appear to be necessary. So I feel a little more in the dark. Help, please.

BTW: Why is ffmpeg a dependency?

Hi bentb,
Sorry that didn't help! I am not very familiar with OpenSUSE but it may be worth looking at the steps for enabling Smart Add for Desktop from our FAQ, particularly the command in step 2:

/opt/RememberTheMilk/rememberthemilk --disable-gpu --enable-transparent-visuals --force-enable-global-smart-add %U

Working with those flags the app provides may help with any driver/GPU errors like you are encountering.

Our Linux app (desktop app generally) uses Electron, a standalone "browser app" that packages the whole thing together, and I expect that it uses a lot of these dependencies for hardware accelerated graphics or other things more generally. It also is a fairly "generic"/all-purpose app so it may be that ffmpeg and other dependencies provide video playback within an Electron app even if our Electron app doesn't use them. 😅

Keep us posted on what you find!

When I run your command above, the complaints about the libva errors disappear, but not the one about the GPU:

~> /opt/RememberTheMilk/rememberthemilk --disable-gpu --enable-transparent-visuals --force-enable-global-smart-add %U
[4567:0816/163952.250892:FATAL:gpu_data_manager_impl_private.cc(415)] GPU process isn't usable. Goodbye.
Trace/breakpoint trap (core dumped)
~>

A question: would it be possible to get the source code or can I persuade you to build a Flatpak or Appimage package?

The following may or may not be relevant in this connection, but I'll tell about it anyway.

I run a self-hosted Nextcloud solution here. I had problems getting the Nextcloud sync client installed on my workstation. The client is a Flatpak package and it also complained about the GPU.
The problem in this case turned out be incompatibility the versions of the Nvidia driver installed on the workstation and the version referred to by the Flatpak system. When I installed the right Flatpak version of the driver the problem went away and my Nextcloud client started working.
Just for your information - and inspiration?

Hi bentb,
Sorry that didn't help! We don't currently offer the source code for this, but I have passed your feedback on to the development team for that and/or a package.

In the meantime, may I offer another flag? I wonder if adding --no-sandbox may help:

/opt/RememberTheMilk/rememberthemilk --disable-gpu --enable-transparent-visuals --force-enable-global-smart-add --no-sandbox %U

I hope this helps, but keep me posted on what you find so we can see what else we may need to keep in mind for future versions/packages.

Hi Andrewski

Bingo! That did it. Now it works beautifully.

Thanks a lot for your patience and help

Hi bentb,
Likewise, thanks for testing and for your patience! I'll confirm that with the development team and keep that in mind for future updates to the app. 💙