Where I find deb-src or src.rpm of the packages?

have deb-src of [1] would be nice , to package it in other distros

[1]
jibri_8.0-14-g0ccc3f6-1_all.deb
jicofo_1.0-508-1_amd64.deb
jigasi_1.1-38-g8f3c241-1_amd64.deb
jitsi_2.10.5550-1_amd64.deb
jitsi-archive-keyring_1.0.1_all.deb
jitsi-meet_1.0.4101-1_all.deb
jitsi-meet-prosody_1.0.3729-1_all.deb
jitsi-meet-tokens_1.0.3729-1_all.deb
jitsi-meet-web_1.0.3729-1_all.deb
jitsi-meet-web-config_1.0.3729-1_all.deb
jitsi-videobridge_1126-1_amd64.deb

We do not have deb-src as all the packages depends on hundreds of other packages …

??? I diidn’t understand , I’m just asking for deb-src of these packages ? not all Debian
How you generate these packages ?

apt-get source jigasi , doesn’t work

There are scripts in jicofo, and jvb which generate the debian package under resources folder, it used in the jenkins job that generate the package.
There no source packages, we generate binary packages only.