charlax/professional-programming

A collection of learning resources for curious software engineers

51.6k stars · 4k forks · Python

This repo isn't software code, so code checks are limited.

Caution

Caution: one person wrote most of the recent commits.

Why

One person wrote 91% of human commits in the last year, so the project depends on them continuing. The repository holds mostly documentation, data or model files, so inactivity matters less than for a code library. (source 1, source 2)

What would change this

A second person takes a substantial share of commits.

Maintenance

Complete

Slowing

Human commits, 30 days: 2
Human commits, 90 days: 4
Human commits, 365 days: 35
Bot share of commits, 365 days: 0%
Last commit: Sep 29, 2026 (15 days ago)
Last human commit: Sep 29, 2026 (15 days ago)
Authors, 90 days: 1
Last release: none found
Median PR merge time: 4 days

Responsiveness: of 1 recent issues, n/a got a maintainer reply. Median first response: n/a.

Only 1 recent issues can be checked for a response, too few to measure response time.

Sources: Commits, Releases, Merged pull requests, Issues

People

Complete

Owner: Personal account
Commits sampled: 35 since Oct 14, 2025
Authors for half of commits: 1
Authors for 80% of commits: 1
Contributors: 40

Top committers

charlax: 91% of commits
mattpaulitsch: 3% of commits
Nadeus: 3% of commits
tiagomonteiro0715: 3% of commits

Sources: Commits, Contributors

Stars

Complete

Organic, confidence high

Bars show stars gained each week. Orange bars overlap a burst.

Bursts

Jan 17, 2019 to Feb 25, 2019: about 11.3k more stars than usual, peak 1.5k in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks, a jump in issues and pull requests.
Sep 22, 2019 to Sep 25, 2019: about 103 more stars than usual, peak 57 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Mar 15, 2021 to Mar 19, 2021: about 363 more stars than usual, peak 173 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Jul 1, 2022 to Jul 8, 2022: about 970 more stars than usual, peak 280 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Jul 16, 2022 to Jul 29, 2022: about 1.8k more stars than usual, peak 478 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Sep 8, 2022 to Sep 12, 2022: about 418 more stars than usual, peak 226 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Oct 29, 2022 to Nov 2, 2022: about 159 more stars than usual, peak 84 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Nov 14, 2022 to Nov 15, 2022: about 131 more stars than usual, peak 79 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Nov 26, 2022 to Dec 2, 2022: about 619 more stars than usual, peak 210 in one day, a shape we can't classify. Outside explanation: a jump in forks.
Jan 7, 2023 to Jan 12, 2023: about 200 more stars than usual, peak 98 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Mar 18, 2023 to Mar 23, 2023: about 148 more stars than usual, peak 69 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Jul 25, 2023 to Jul 27, 2023: about 54 more stars than usual, peak 28 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
Feb 19, 2024 to Mar 24, 2024: about 19.8k more stars than usual, peak 7.8k in one day, a spike that tapers off. Outside explanation: a Hacker News post, a jump in forks, a jump in issues and pull requests.
Sep 21, 2024 to Sep 25, 2024: about 170 more stars than usual, peak 50 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
Jan 4, 2025 to Jan 5, 2025: about 159 more stars than usual, peak 134 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
Sep 24, 2025 to Oct 8, 2025: about 1.3k more stars than usual, peak 505 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Jan 13, 2026 to Jan 15, 2026: about 115 more stars than usual, peak 70 in one day, a spike that tapers off. We couldn't check for an outside explanation.
Mar 6, 2026 to Mar 8, 2026: about 198 more stars than usual, peak 156 in one day, a spike that tapers off. We couldn't check for an outside explanation.
May 16, 2026 to May 20, 2026: about 172 more stars than usual, peak 102 in one day, a spike that tapers off. We couldn't check for an outside explanation.

2 stars GitHub has since removed (tracked since Oct 13, 2026).

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

The star history looks organic.
Engagement is not compared for non-code or mirror repositories.

Sources: How star history is analyzed

Risk

Complete

Flags

No risk flags.

License

Now: MIT (OSI-approved)
A year ago: MIT (OSI-approved)

Packages

No published packages found.

Sources: GitHub: charlax/professional-programming

Badge

Add this to a README to show the current verdict:

[![RepoRadar](https://reporadar.ai/charlax/professional-programming/badge.svg)](https://reporadar.ai/charlax/professional-programming)

Earlier verdicts

Oct 14, 2026: Caution
Oct 13, 2026: Caution
Oct 13, 2026: Caution

Computed 16 hours ago · method 2026.10.2