FYI: The processed code is big enough, that in my install at least, Unity outright stops rendering text beyond a certain point in the code editor because of how long the string is. "String too long for TextMeshGenerator. Cutting off characters." Still functions normally, far as I can tell - the rendering's just messed up.
I can't say as that I've been able to test it yet, something's going wrong in my install that's preventing the processor from ticking as it should (probably just at low clockspeeds, like Default Mode's) - will update this when I fix whatever's broken.
All that being said: whoa. This is a super neat idea, and I'm curious to know what one could actually pull off with it. Given the proclivity of programmers to occasionally do utterly insane things (see also: Senbir itself, this interpreter, etc), there are tools for compiling/processing code from other languages into BF code, like this C compiler. Though it's in a roundabout way, this does officially mean it's possible to write things in higher-level (?) languages, like C, and then run them in Senbir. Would an OS or game made in Senbir-BF be usable? Not in Default mode, or even Extended - I cannot begin to comprehend how slow it'd be with the base clockspeed of 60Hz. Would it be a fun experiment? Hell yeah, it would be!
(Also, sorry about kinda disappearing on everyone - I'm still working on the next update, but been sidetracked by playing Warframe, and working on Astronaut Plus Skateboard as of the past few weeks.)