Since there is no official "firmware crack" for the Neato D8, a feature draft on this topic would likely focus on the developer community's efforts to bypass software limitations or enable custom capabilities (like local-only control).
The D8 and its newer generation (often referred to as "Generation 4" in hacking communities) has proven significantly more challenging to hack. As noted in major community projects, the entire D8, D9, and D10 series are not yet supported by the most popular open-source local control solutions.
If you are interested, I can proactively provide more information on: How to safely from your D8