Custom mips platform

I have never used platformio but have used vscode some.
I have an embedded Linux board running buildroot based on MIPS32el. The processor itself is Ingenic T31x SoC with 128MB DRAM. I have built buildroot with GDB support and GDBserver for the target.
Would there be any similar platforms I could use or edit to suit my purpose?
Would I have to create a new one?
Am I better off just using GDB via command line or with some other IDE?