If you’ve ever wanted to analyze your own health data, here’s how.
- Open the Health app.
- Tap on your profile in the top right.
- Tap Export All Health Data.
- Share the archive with yourself (e.g. via AirDrop, Files, Mail, etc.).
hoffa
/ parsing-apple-health-data.md
Last active
July 28, 2025 22:17
hoffa
/ pki-for-busy-people.md
Last active
September 1, 2025 00:34
Public-key infrastructure (PKI) is an umbrella term for everything that has to do with keys and certificates.
This is a quick overview of the important stuff.
Public-key cryptography involves a key pair: a public key and a private key. Each entity has their own. The public key can be shared around, the private key is secret.
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| class CQueue: | |
| def __init__(self, k=0.5): | |
| self.q = [] | |
| self.m = 0 | |
| self.k = k | |
| def enqueue(self, v): | |
| self.q.append(v) | |
| def dequeue(self): |
hoffa
/ unicode.py
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December 2, 2020 21:50
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| import sys | |
| import unicodedata | |
| for c in sys.stdin.read(): | |
| utf8 = c.encode("utf-8").hex().upper() | |
| code_point = ord(c) | |
| name = unicodedata.name(c, "") | |
| print(f"{c}\t0x{utf8}\tU+{code_point:04X}\t{name}") |