DSP (room correction) with LMS and an SBC

I run an Allo Sparky + USBridge running Squeezelite (via DietPi) connected to a Chord Mojo DAC. This just replaced a Linn Klimax DS/1 streamer as it clearly sounds better, so I just saved £2k by selling the Linn!

I’ve used LMS and previous for 10 years or so and currently run 7.9.1 on a Synology 216Play. It’s all good and I love it, but I miss the ability to tweak the bass to iron out a couple of room modes. Can anyone help me with a way of reinstating this with my setup. This could be using LMS, but perhaps using the Allo Sparky? BruteFIR is not available on the Sparky DietPi distribution. Wonder if anyone knows why? A relatively simple install would be nice as my Linux knowledge is poor.