Archive: https://archive.today/FqfgB HN Article: https://news.ycombinator.com/item?id=43094260 HN Archive: https://archive.today/ukFOA From the post: >>This is good for modding but don't be misled, this is the TF2-specific code which sits on top of the still-closed-source Source engine. For example you couldn't port TF2 to a new platform with this, at least not without reimplementing Source or wrangling it into working with one of the leaked Source codebases and dealing with the legal fallout of that.