Hopefully you still have your LimeSDR - I still have mine but, like you, I’m getting weary waiting for the applications that will make the Lime more useful for the majority of backers that are Hams. Being a hardware guy, I have designs in the queue for a PA, LPF, and even a multiband electronically tuned preselector on the drawing board, but the apps have been glacial getting transmit to function. I thought we Hams had a nice shot with SDRAngel, and I still think it’s got a chance to be first to be useful for HF/VHF/UHF, but I’m not sure there’s too much that can be done to the underlying LimeSDR other than putting toys around it to be more ‘rig-like’ (like those previously mentioned). Changing the hardware on the Lime itself is kind of a nonstarter because of its topology and density, but putting things outside of it is definitely worth doing to make it useful for the bands of interest. When things start working for transmit voice I’m going into high gear to start making those toys because the Lime really is a good foundational layer for a transceiver, especially the dual channel, full duplex capabilities - that’s a perk.
Don’t give up hope yet - there’s work on three fronts (and I’m working on a fourth) that are attempting to get the SW working for transmit to round out that part of it. But, like you, there’s a limit and even I’m approaching it. No other SDR kept an audience waiting this long to be functional with apps other than GNU Radio Companion and Pothos…
Keep the faith - - 73 de Marty, KN0CK