Marty, there is no tailoring, this code is agnostic to acquisition hardware. It takes a prerecorded file of rf samples. You need to appropriately specify bandwidth, IF and data types (short, ushort, float, double etc.) and corresponding data size in the initSettings.m file.
I’ve used gps-sdr-sim (https://github.com/osqzss/gps-sdr-sim) for GPS simulation and documented replay attacks in these blog posts: http://sdrgps.blogspot.com/2016/12/rtl-sdr-to-orbit-with-limesdr.html and
http://sdrgps.blogspot.com/2016/12/gps-fake-out-with-limesdr.html . While the posts are about a replay attacks (LimeSDR broadcast, RTLSDR receive, offline decode with SoftGNSS), I was able to take the output of gps-sdr-sim in both cases and use it directly with SoftGNSS.
I was also able to use a Spirent GPS simulator at work with excellent results (using proprietary data… no blog post)
I was intending to do a GPS acquisition blog post with LimeSDR Mini once it arrives (tick, tock…). There’s now way I’d fly a $300 LimeSDR on a rocket, but I might be tempted to do it with the LimeSDR Mini at the early bird pricing (using the tx channel for telemetry, nauturally). As small as it is I could likely package it to give it a fighting chance in a hard landing.