Please read https://mcpelauncher.readthedocs.io for available packages.
First of all your system have to trust the gpg key used to sign the repository, then you can add the distribution specfic apt repo.
curl -sS https://minecraft-linux.github.io/pkg/deb/pubkey.gpg | sudo tee -a /etc/apt/trusted.gpg.d/minecraft-linux-pkg.asc
Releases before including v0.9.0 don't provide arm64 for debian, you may need to add the nightly repo to install the arm64 version. Releases before including v0.11.4 don't provide armhf for debian, you may need to add the nightly repo to install the armhf version. Releases before including v0.11.4 don't provide fedora 39 packages, you may need to add the nightly repo to install the fedora 39 version.
echo "deb [arch=arm64] https://minecraft-linux.github.io/pkg/deb bionic main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb focal main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb jammy main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb kinetic main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb lunar main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb mantic main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb noble main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb oracular main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64,armhf] https://minecraft-linux.github.io/pkg/deb bullseye main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64,armhf] https://minecraft-linux.github.io/pkg/deb bookworm main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb bionic-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb focal-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb jammy-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb kinetic-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb lunar-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb mantic-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64] https://minecraft-linux.github.io/pkg/deb noble-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64,armhf] https://minecraft-linux.github.io/pkg/deb bullseye-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
echo "deb [arch=amd64,arm64,armhf] https://minecraft-linux.github.io/pkg/deb bookworm-nightly main" | sudo tee /etc/apt/sources.list.d/minecraft-linux-pkg.list
Releases before including v0.9.0 don't provide arm64, you may need to add the nightly repo to install the arm64 version. Releases before including v0.11.4 don't provide fedora 39 packages, you may need to add the nightly repo to install the fedora 39 version.
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-36
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-37
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-38
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-39
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-40
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-38-nightly
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-39-nightly
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-40-nightly
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF
cat | sudo tee /etc/yum.repos.d/minecraft-linux-pkg.repo << 'EOF'
[minecraft-linux-pkg]
name=minecraft-linux-pkg
baseurl=https://minecraft-linux.github.io/pkg/fedora-41-nightly
enabled=1
countme=1
repo_gpgcheck=0
type=rpm
gpgcheck=1
skip_if_unavailable=False
gpgkey=https://minecraft-linux.github.io/pkg/deb/pubkey.gpg
EOF