Yes, our Homekit function can be done with Raspberry Pi or openWRT.
The Apple certification will take much money and a long time which may delay our shipping schedule and increase your cost (the MFI chip is not cheap). But you still have two ways to enable Homekit:
1. Using Raspberry Pi or other boards to bridge Switch Link to Homekit as we currently do. We will release a tutorial on how to set up homekit with Raspberry Pi before shipping. In short what you need to do is just inserting a SD card with our firmware to your Raspberry Pi - power on- - configure your WiFi password, then it is done!
2. We are sure there will be third-party firmwares of Switch Link with Homekit support released in our community, then you can enjoy Homekit with Switch Link standalone.