Syno-CLI Monitor doesn't appear for ds920+ NAS

[MilesTEG1]

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Setup

Package Name: Syno-CLI Monitor
Package Version: v1.0-1
NAS Model: DS920+
NAS Architecture: Geminilake x64 (Intel Celeron J4125)
DSM version: 6.2.3-25426 Update 3

Expected behavior

The Syno-CLI Monitor package should appear in the listed package in the Community tab of the package manager :

Actual behavior

It doesn't appear in the list.

Steps to reproduce

On a DS920+, just open the package manager, go to Community tab, and see, or not see the Syno-CLI Monitor package...

What I do :

I download the synocli-monitor.v1.f15047[apollolake-avoton-braswell-broadwell-broadwellnk-bromolow-cedarview-denverton-dockerx64-grantley-kvmx64-x86-x86_64].spkfile and installed it manually.

Can you make the package appears in the package manager list community ?
Thanks in advance.