Don't know if it's the place to post but I've noted a possible bug:
(N.B.: Windows 7 and Firefox browser)

I print the 'context->audioFrames' in the setup(...) function, the blocksize value is correct.
settings.json:

{
  "fileName": "render.cpp",
  "CLArgs": {
    "-p": "4",
    "-C": "8",
    "-B": "16",
    "-H": "-6",
    "-N": 1,
    "-G": "1",
    "-M": "0",
    "-D": "0",
    "-A": "0",
    "--pga-gain-left": "10",
    "--pga-gain-right": "10",
    "user": "",
    "make": "",
    "-X": "0",
    "audioExpander": "0",
    "-Y": "",
    "-Z": ""
  }
}

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I stop the execution and toggle the state of boxes “use digital” and/or “use analog” in IDE (in "Basic" project) and when I execute the project (in IDE), the context->audioFrames value is set to its default value of 16 despite the IDE having another value.
Stop the execution.

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Download the project from IDE. The parameters displayed has changed after the download.

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Open the downloaded settings.json file. Values are the same as displayed currently in the browser but not to what was selected.

{
  "fileName": "render.cpp",
  "CLArgs": {
    "-p": "16",
    "-C": "8",
    "-B": "16",
    "-H": "-6",
    "-N": 0,
    "-G": "1",
    "-M": "0",
    "-D": "0",
    "-A": "0",
    "--pga-gain-left": "10",
    "--pga-gain-right": "10",
    "user": "",
    "make": "",
    "-X": "0",
    "audioExpander": "0",
    "-Y": "",
    "-Z": ""
  }
}

Refresh the browser. The values are the same.
Change the value of blocksize and execute. 'context->audioFrames' is correct.
Download the project.

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Open settings.json:

{
  "fileName": "render.cpp",
  "CLArgs": {
    "-p": "4",
    "-C": "8",
    "-B": "16",
    "-H": "-6",
    "-N": 0,
    "-G": "1",
    "-M": "0",
    "-D": "0",
    "-A": "0",
    "--pga-gain-left": "10",
    "--pga-gain-right": "10",
    "user": "",
    "make": "",
    "-X": "0",
    "audioExpander": "0",
    "-Y": "",
    "-Z": ""
  }
}