I am waiting for working rustical drivers, too. I have already installed version 23.1.1 but cltest gives only:
[dt_opencl_device_init]
DEVICE: 0: 'AMD Radeon Graphics (renoir, LLVM 15.0.7, DRM 3.49, 6.1.0-1013-oem)'
PLATFORM NAME & VENDOR: rusticl, Mesa/X.org
CANONICAL NAME: rusticlamdradeongraphics
DRIVER VERSION: 23.1.1 (git-f63bcc8ad2)
DEVICE VERSION: OpenCL 3.0
DEVICE_TYPE: GPU
GLOBAL MEM SIZE: 15724 MB
MAX MEM ALLOC: 2048 MB
MAX IMAGE SIZE: 16384 x 16384
MAX WORK GROUP SIZE: 1024
MAX WORK ITEM DIMENSIONS: 3
MAX WORK ITEM SIZES: [ 1024 1024 1024 ]
ASYNC PIXELPIPE: NO
PINNED MEMORY TRANSFER: NO
MEMORY TUNING: NO
FORCED HEADROOM: 400
AVOID ATOMICS: NO
MICRO NAP: 250
ROUNDUP WIDTH: 16
ROUNDUP HEIGHT: 16
CHECK EVENT HANDLES: 128
TILING ADVANTAGE: 0.000
DEFAULT DEVICE: NO
KERNEL BUILD DIRECTORY: /opt/darktable/share/darktable/kernels
KERNEL DIRECTORY: /home/ds/.cache/darktable/cached_v1_kernels_for_rusticlAMDRadeonGraphics_2311gitf63bcc8ad2
CL COMPILER OPTION: -cl-fast-relaxed-math
KERNEL LOADING TIME: 1.1441 sec
...
[opencl_init] OpenCL successfully initialized. Internal numbers and names of available devices:
[opencl_init] 0 'rusticl AMD Radeon Graphics'
[opencl_init] 1 'NVIDIA CUDA NVIDIA GeForce RTX 3060 Laptop GPU'
[opencl_init] FINALLY: opencl is AVAILABLE and ENABLED.
darktable-cltest: ../src/gallium/drivers/radeonsi/si_buffer.c:350: si_buffer_transfer_map: Assertion `box->x + box->width <= resource->width0' failed.
Abgebrochen (Speicherabzug geschrieben)