the correct place for the nightly builds is addons/amxmodx/
Its a good idea to have it like that soo you can have stable .16 release to fall back on if need be, that is what I did
P.S
As a feature to AMXX .20 ... modules no longer have to hook to metamod for them to run, the only thing meta list will show on AMXX .20 is AMX MOD X itself, the modules you would have to either use the command amxx modules or amx_modules.
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