Yup, just throw into QQQ/QQQM or a similar NASDAQ ETF and watch it go.
If you want a bit of extra diversity, put some more into a simple S&P 500 ETF, like VOO or SPLG.
Also worth checking out MOAT - companies Morningstar evaluates as having "sustainable competitive advantages" over rivals... Big holdings with the Tech biggies, but also some energy, defence, pharma, etc... 19.5% 5-yr return, 43.88% in 12 months (don't think for a second that's going to be repeated though).. Seems a solid pick to me.
For the fellow Aussies out there, there are similar ETFs on the ASX as well - NDQ for the Nasdaq, and IVV & SPY (very similar, but the recommendation seems to be with IVV - much higher volume) as S&P 500 trackers. Also for Australian-based shares, there's A200 and VAS (which actually takes the top 300, not 200 companies on the ASX) - you can probably buy MOAT as well.