pulseaudio-module-jack depends on libjack-jackd2-0 (>= 1.9.10+20150825) | libjack-0.125; however:
  Package libjack-jackd2-0:amd64 is to be removed.
  Package libjack-0.125 is not installed.
  Package libjack-jackd2-0:amd64 which provides libjack-0.125 is to be removed.
 libavdevice58:amd64 depends on libjack-jackd2-0 (>= 1.9.10+20150825) | libjack-0.125; however:
  Package libjack-jackd2-0:amd64 is to be removed.
  Package libjack-0.125 is not installed.
  Package libjack-jackd2-0:amd64 which provides libjack-0.125 is to be removed.
 libasound2-plugins:amd64 depends on libjack-jackd2-0 (>= 1.9.10+20150825) | libjack-0.125; however:
  Package libjack-jackd2-0:amd64 is to be removed.
  Package libjack-0.125 is not installed.
  Package libjack-jackd2-0:amd64 which provides libjack-0.125 is to be removed.
 jackd1 depends on libjack-jackd2-0 (>= 1.9.10+20150825) | libjack-0.125; however:
  Package libjack-jackd2-0:amd64 is to be removed.
  Package libjack-0.125 is not installed.
  Package libjack-jackd2-0:amd64 which provides libjack-0.125 is to be removed.

(Reading database ... 124969 files and directories currently installed.)
Removing libjack-jackd2-0:amd64 (1.9.12~dfsg-2build1) ...
Selecting previously unselected package libjack0:amd64.
(Reading database ... 124957 files and directories currently installed.)
Preparing to unpack .../libjack0_1%3a0.125.0-3build1_amd64.deb ...
Unpacking libjack0:amd64 (1:0.125.0-3build1) ...
Selecting previously unselected package libzita-alsa-pcmi0:amd64.
Preparing to unpack .../libzita-alsa-pcmi0_0.2.0-4ubuntu2_amd64.deb ...
Unpacking libzita-alsa-pcmi0:amd64 (0.2.0-4ubuntu2) ...
Selecting previously unselected package libzita-resampler1:amd64.
Preparing to unpack .../libzita-resampler1_1.6.0-2_amd64.deb ...
Unpacking libzita-resampler1:amd64 (1.6.0-2) ...
Selecting previously unselected package jackd1-firewire.
Preparing to unpack .../jackd1-firewire_1%3a0.125.0-3build1_amd64.deb ...
Unpacking jackd1-firewire (1:0.125.0-3build1) ...
Selecting previously unselected package libjack-dev.
Preparing to unpack .../libjack-dev_1%3a0.125.0-3build1_amd64.deb ...
Unpacking libjack-dev (1:0.125.0-3build1) ...
Setting up libzita-alsa-pcmi0:amd64 (0.2.0-4ubuntu2) ...
Setting up libjack0:amd64 (1:0.125.0-3build1) ...
Setting up libzita-resampler1:amd64 (1.6.0-2) ...
Setting up libjack-dev (1:0.125.0-3build1) ...
Setting up jackd1 (1:0.125.0-3build1) ...
Setting up jackd1-firewire (1:0.125.0-3build1) ...
Processing triggers for man-db (2.8.7-3) ...
Processing triggers for libc-bin (2.30-0ubuntu2.1) ...
# OS packages installation successful
tristan@test:~/tmp$ opam install bjack
The following actions will be performed:
  ∗ install   bjack      0.1.5
  ↻ recompile liquidsoap 1.4.1-2 [uses bjack]
===== ∗ 1   ↻ 1 =====
Do you want to continue? [Y/n] y

<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/2: [bjack.0.1.5: dl]
[liquidsoap.1.4.1-2] found in cache
[bjack.0.1.5] downloaded from cache at https://opam.ocaml.org/cache

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
⊘ removed   liquidsoap.1.4.1-2
∗ installed bjack.0.1.5
∗ installed liquidsoap.1.4.1-2
Done.

<><> liquidsoap.1.4.1-2 installed successfully ><><><><><><><><><><><><><><><><>
=> ✨ Congratulations on installing liquidsoap!