Mstat a temperature and stat tracker for macOS in Zig and SwiftUI
Details
- External ID
- 49158573
- Source
- HN
- Company
- —
- Product
- Mstat a temperature and stat tracker for macOS in Zig and SwiftUI
- Website domain
- git.cafe
- Launched
- Aug. 3, 2026
- Cohort
- —
- Upvotes
- 13
- Upvotes percentile
- 0.6639784946236559
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
Turns out it's weirdly hard to quickly check cpu temp on M series macs so whipped this up, also has cpu usage, memory, and lets you show multiple or just an icon for the popover.
Enrichment
- Theme
- desktop and macOS productivity utilities
- Vertical
- Horizontal
- Function
- Observability & eval
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- system temperature and stats monitor for macos
- Manually corrected
- False
Could you build this?
Partial Creating the menu bar UI in SwiftUI is straightforward, but reading Apple Silicon internal SoC temperature sensors requires calling undocumented IOKit/SMC C-APIs.
What it would actually take: Requires bridging Swift with Zig/C to invoke private Apple Silicon IOHID / SMC (AppleSMC / HIDServiceClient) kernel APIs to locate undocumented temperature keys (like 'Tp09', 'Tg05'). The challenging part is deciphering Apple's proprietary thermal and power management registers across different M-series chip generations without official documentation.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 97 launches clear the similarity bar, closest 8 shown.
Attention rank: #49 of 98 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 247 days after the earliest competitor.
- MacMonitor · ph · 2026-09-21 · 1 upvotes · similarity 0.53
- OpenStats · github · 2026-09-12 · 42 upvotes · similarity 0.49
- mectrics · ph · 2026-07-31 · 268 upvotes · similarity 0.49
- MacBreeze · ph · 2026-09-28 · 2 upvotes · similarity 0.44
- On the edge of Apple Silicon memory speeds · hn · 2026-01-17 · 5 upvotes · similarity 0.41
- Juicy - Mac Battery App · ph · 2026-07-10 · 228 upvotes · similarity 0.41
- MacGlow · hn · 2025-11-29 · 7 upvotes · similarity 0.41
- Aman Disk · ph · 2026-09-26 · 1 upvotes · similarity 0.40
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a observability & eval tool for Media & entertainment yet.