I hope the developers can add support for jdcloud_re-cs-07, thank you
Realistically only you can add OpenWrt support for this device.
No one else has the device on their desk, nor a motivation to work on it. There is no one with spare time (which may take between a long rainy weekend and several weeks of work, if it's supportable at all) on their hands waiting for device support request, nor any budget to go out and buy random stuff, just because someone requested support for it. Accordingly most device support is developed by irregular- or one-time contributors, who did the work to get their device supported. So either you start the development - or no one else will; or you take the easy route and inform yourself before buying anything and go with something that is already fully supported.
The job is all yours for the taking.
Same device as Add Openwrt support for JD Cloud ER1 Wired Router ?
Yes. I have already got the device. JD Cloud has provide a intermediate openwrt version so there is no problem with SSH. there is plenty of builds of this device from developers from right.com.cn. Looking to migrate to qosmio's NSS build first.