Ipq806x NSS build (Netgear R7800 / TP-Link C2600 / Linksys EA8500)

I am trying to compile openwrt for the first time based on this build. My goal is to include some kernel modules like kmod-sound-core, a requirement for minidlna.
I follow the instructions from the first comment.
Trying to run

➜  openwrt git:(kernel5.4-nss-qsdk10.0) ✗ ./scripts/feeds install -a

I get the following warnings

WARNING: Makefile 'package/qca/qca-nss-drv/Makefile' has a dependency on 'kmod-qca-nss-dp', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-ovsmgr', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-ovsmgr', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-ovsmgr', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-hyfi-bridge', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-mcs', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-ovsmgr', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-hyfi-bridge', which does not exist
WARNING: Makefile 'package/qca/qca-nss-ecm/Makefile' has a dependency on 'kmod-qca-mcs', which does not exist

Should I worry?

Then the image generated is

bin/targets/ipq806x/generic/openwrt-ipq806x-generic-netgear_r7800-squashfs-sysupgrade.bin

Should it be something like this?

bin/targets/ipq806x/generic/R7800-20210207-MasterNSS-sysupgrade.bin

With the date of today.

I see also that the ipk packages are generated but it seems that opkg has some kind of bug. Reported here:

but anyway I prefer to learn how to do my own compilations so maybe I can help debugging problems.
I also see the patch error mentioned above at the end of the lengthy compile.

It is safe to upload the sysupgrade image generated by me on top of the one I downloaded and installed from the repo or should I check something more like bumping the version?