Upload sketch through internet

hi guys,

i have arduino mega 2560 ethernet shield @ remote place. so, know there possibility of uploading sketch through internet , not using cable?

i did read through below approaches. not know how effective first approach , regards second, uses node mcu , not arduino mega.

1. https://www.freetronics.com.au/pages/how-to-upload-a-sketch-to-your-arduino-via-a-network#.wi6mbvniyux

2. https://www.youtube.com/watch?v=goqxolb50ha

thank you.

i'm not sure mean "not using cable". have ethernet shield i'd have assume it's connected ethernet cable.

this 1 want:
https://github.com/loathingkernel/ariadne-bootloader

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