These binary caches are for past version of Yukigram that was based on 64Gram which is not supported. Consider updating to patch-based Yukigram instead.
Run these commands as root to install Yukigram to your PostmarketOS device:
wget https://yukigram.github.io/yukigram-legacy/pmaports/yukigram-key/yukigram.github.io.rsa.pub -O /etc/apk/keys/yukigram.github.io.rsa.pub echo https://yukigram.github.io/yukigram-legacy/packages/edge >> /etc/apk/repositories apk update apk add yukigram yukigram-key
It is recommended that you add the repository to your device as described above. This way you will get automatic updates. If you still want to install the APK manually, here are the links:
Specify git+https://github.com/yukigram/yukigram-legacy?submodules=1 as the input URL in your flake.
Alternatively, you can import the Yukigram package on a non-flake system as follows:
callPackage (fetchFromGitHub {
owner = "yukigram";
repo = "yukigram-legacy";
rev = "8c36fe4b06fa73d5d9f4027f4d3a3344b1ad8f43";
sha256 = "1iingw0j5rpf1hx2dy10n2038360jbp60i1cfg6vm10nr0qlzrxn";
fetchSubmodules = true;
}) {}
To use the binary cache, specify https://yukigram.github.io/yukigram-legacy as an extra substituter, and yukigram-nixos-binary-cache:8FeRRR1cmdFDhkyTl3oCImoLqdCs/gJ/RjyWmZfxaVc= as an extra trusted key. Note that the binary cache is only provided for the Nixpkgs version pinned in the flake.
flatpak remote-add --user --if-not-exists yukigram https://yukigram.github.io/yukigram-flatpak/index.flatpakrepo flatpak install io.github.yukigram