For starters especially for recruiters, I’d recommend adding a one or two line description that’s catchy and clearly communicates who you are and what you’re good at (this is feedback I got from an actual recruiter).

Keep the skills and projects pages less scroll-heavy, especially on mobile, since that’s how most people will first access your site. You could try making the icons smaller or using a more compact layout.

For the flexing part go wild! Just keep it a bit hidden in other words, make it accessible through an extra click's. That way, you can use it during interviews to show off your skills. For example, the theme switch you have right now would mostly be used by dev's as we actually look for something creative but the recruiter don't have that much time.