MicroMac, a Macintosh for under £5

Original Article ↗ Hacker News Discussion ↗

Nostalgia and Use Cases

  • Many commenters love the idea of a tiny Mac running classic System 7, seen as the peak of classic Mac OS.
  • Some want a “zen mode” laptop or ultra‑light machine dedicated to System 7–9 era software, with all‑day battery life and minimal distractions.
  • Others see it as a great first computer for kids with strictly limited capabilities.

Hackintosh and Modern macOS

  • A few hoped this was a cheap Hackintosh running current macOS.
  • It’s noted that Hackintosh is still possible on Intel, but support is clearly in decline.
  • GPU support is the main barrier for “cheap” builds; older AMD cards or supported iGPUs are commonly used.
  • Those who have run Hackintoshes report good results but say OS updates can be painful, often consuming weekends; some cope by staying several versions behind.

Hardware Choices and Emulation

  • The standout element for many is using the RP2040’s PIO to generate VGA and act as a quasi‑68k, rather than just running Linux plus an emulator.
  • Some argue other MCUs (STM32, ESP32) can do similar video output, but others reply that RP2040’s PIO is unusually flexible compared to single‑purpose peripherals.
  • There’s interest in FPGA or ESP32‑based approaches, but some say software emulation is already “good enough” and more flexible than cycle‑accurate hardware.

Displays, CRTs, and X‑Rays

  • Commenters want authentic CRT aesthetics; ideas range from curved lenses over flat panels to doubly‑curved OLEDs.
  • Others point out that with 4K HDR panels and devices like Retrotink 4K, CRT emulation can already look very convincing.
  • There’s debate over CRTs and X‑rays: electron beams do produce some X‑rays in the phosphor, but they’re low‑intensity and shielded by the glass.

Memory, PSRAM, and Performance

  • Some wonder about storing emulated RAM in flash to replicate the original 512 KB; others flag flash wear and missing PSRAM support on RP2040.
  • Workarounds using PIO or QSPI PSRAM are discussed, and ESP32 is noted as having native SPI‑PSRAM expansion.

Cables, E‑Waste, and Scavenging

  • The chance discovery of a street VGA cable resonates; many share stories of finding or hoarding old cables and hardware.
  • Thrift stores, surplus/auction sites, and recycling programs are recommended sources.
  • Several criticize bundled cables as a major source of e‑waste and argue devices should ship without most cables.