hangman for tech terms (DevOps, cybersecurity, networking, AI…). What would you add?

Hi all, solo dev here. I released Guess the Code, a free Android word game where every answer is a tech term. Think hangman or Wordle, but for DevOps, cybersecurity, networking, AI and more.

Play Store: Guess the Code - Apps on Google Play

How it works:

- You get a clue, for example "A key-value NoSQL database by Amazon", and a row of empty tiles.

- Tap letters on the keyboard. Right letters turn yellow and fill in the tiles. Wrong letters turn red and cost you a heart (you have 5).

- Stuck? You can use a hint.

What's in it:

- Topics: DevOps & Cloud, Cybersecurity, Data Science & AI, Networking, Database Management, Mobile Development, UI/UX Design, Embedded Systems & IoT, Game Development

- A bank of about 1,000 words

- Free. There's a small banner ad, and if you want you can watch an ad for +1 hint or +3 extra attempts.

What I'd like feedback on:

1. Are the clues fair? Too easy, too hard, or too vague?

2. Is 5 hearts the right amount? Do the hints feel fair?

3. Is anything confusing in the first minute?

Android only for now. Screenshots are attached.