If you're not too far into the project I'd love for you to build it on Orbem Studio. There's live collaboration with chat and you get a free hosted url for building/testing/playing as soon as you get started. Plus you can export to itch.io or Steam so future monetization is up to you. There's a built in art tool and .aseprite import capabilities as well so inserting animations/sprites from your artists is even easier.
I'd love to offer my full technical support to bring this game to life as well as any feature requests. You can already add double jump, create weapons for collecting/swapping including projectiles, but I'd be more than happy to add dash/grapple if you decide to try it out. If you want to check it out go to orbem.studio
Either way keep me in mind for any future projects and good luck!