I also note that the most recent changes to amitools / VAMOS are from the amifuse guy, e.g. https://github.com/cnvogelg/amitools/commit/7be270c4c844127e89572c68

I also note that the most recent changes to amitools / VAMOS are from the amifuse guy, e.g. https://github.com/cnvogelg/amitools/commit/7be270c4c844127e89572c68dc759328cf66c3de https://github.com/cnvogelg/amitools/commit/7be270c4c844127e... That's a lot of PRs from him: https://github.com/cnvogelg/amitools/pulls?q=is%3Apr+author%3Areinauer https://github.com/cnvogelg/amitools/pulls?q=is%3Apr+author%... There's a lot more AmigaOS API calls and infrastructure that filesystem handlers rely on than just BCPL, e.g. I see here he added a fake input.device to make FFS happy: https://github.com/cnvogelg/amitools/pull/231/files#diff-938ffdda545bb8befc008b3b3c841134d9be21cccfb2dfb5bd559935f69e4232 https://github.com/cnvogelg/amitools/pull/231/files#diff-938... And to answer my earlier question, how does one get the filesystem handler out of ROM, the answer is amitools's "romtool" based on data taken from the Amiga ROMSplit tool. So I guess he's working hard on beefing up VAMOS's AmigaOS emulation to get filesystem handlers working. Great stuff!