Td-agent-bit
Fluent Bit/td-agent-bit[1] is an open source and multi-platform Log Processor and Forwarder which allows you to collect data/logs from different sources, unify and send them to multiple destinations.
Packaging
td-agent-bit provides native debian packaging (I could not find debian source packages, though).
To build a new version on package build host:
VERSION=1.5.3
wget http://github.com/fluent/fluent-bit/archive/v${VERSION}.zip
unzip v${VERSION}.zip
tar cfz td-agent-bit_${VERSION}.orig.tar.gz fluent-bit-${VERSION}
cd fluent-bit-${VERSION}/
dch -v ${VERSION}-0 -D buster-wikimedia --force-distribution "New upstream version ${VERSION}"
DIST=buster pdebuild