fengari

That's unusual that you struggled to build Lua. Lua is primarily C89, and used on non-POSIX microcontrollers for example. There are some optional bits of the standard library you would have to leave out - module loading uses dlopen(). This is done simply by defining the right feature macros for your target environment: https://www.lua.org/source/5.4/luaconf.h.html You may also be interested in this project: https://github.com/fengari-lua/fengari

With "[sprintf] unexpected placeholder". This is presumably https://github.com/fengari-lua/fengari/issues/147. You can workaround it by substituting "%.f" for "%.0f" in https://fennel-lang.org/fennel/fennel.lua. However Chrome won't let me override the contents of this URL for some reason. And the first Firefox response override extension I tried ended up confusing the page. So you can alternatively override the contents https://fennel-lang.org/fengari-web.js as follows: `"string" == typeof o.response ? a.f = yt(o.response.replace("%.f","%.0f")) : a.f = new Uint8Array(o.response.replace("%.f","%.0f"));` (Just before `var l = Ee(a);`) Opened a bug for it: https://github.com/bakpakin/Fennel/issues/485

Lua 5.3’s not really a fork. It just has backwards-incompatible changes, as do 5.1, 5.2 and 5.4. Otherwise yes, “Fengari implements Lua 5.3”. https://github.com/fengari-lua/fengari

Some other implementations of Lua: https://github.com/yuin/gopher-lua Lua in Go https://github.com/fengari-lua/fengari Lua in Javascript https://github.com/moonsharp-devs/moonsharp Lua in C#