get its source.  For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code.  There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.

  You should also get your employer (if you work as a programmer) or school,

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label\n  > .custom-file .custom-file-input:focus {\n    z-index: 4;\n  }\n\n  > .form-control,\n  > .custom-select {\n    &:not(:first-child) { @include border-left-radius(0); }\n  }\n\n  // Custom file inputs have more complex markup, thus requiring different\n  // border-radius overrides.\n  > .custom-file {\n    display: flex;\n    align-items: center;\n\n    &:not(:last-child) .custom-file-label,\n    &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }\n    &:not(:first-child)...