Zetema

For developers and students

Tech challenges, ready to pick up.

Real problems people have written down in open-source issue trackers, developer threads and the gaps in public data. Every one is sourced, has a brief and a builder's kit, and is sized so a first version fits a weekend, a few weeks or a semester.

“There is no royal road to geometry.”
Euclid · as reported by Proclus
Where Newfoundland and Labrador

  • Kit readyA semester

    Climate & energy · Anywhere

    People in Newfoundland can't get an accurate carbon figure for their electricity from Electricity Maps.

    Solved looks like

    A script that pulls monthly generation by source from NL Hydro's PDF reports into a CSV from 2018 to the latest month, and a pull request to Electricity Maps adding a source-based fallback power mix for the Newfoundland zone, with the method written down.

    Proof2 sources · 4 quoted claims · github.com/electricitymaps, pub.nl.ca · Sep 2026

    MarketNot sized yet

    Kit5 steps · 20 tools · starter prompt ready

    1. Sourced (done)
    2. Kit (done)
    3. Wanted (next)
    4. Building
    5. Solved
    Open the kit →

    Be the first to want this solved. Nobody is building it yet.

  • Kit readyA semester

    Infra & DevOps · Anywhere

    Prometheus operators can't keep important metrics longer than unimportant ones.

    Solved looks like

    A prototype in Prometheus's storage compaction that drops series matching a configured selector once they pass their own retention, with a benchmark of disk saved on a sample dataset and written answers to the scope questions raised in the issue.

    Proof1 source · 4 quoted claims · github.com/prometheus · Sep 2026

    Market20 reactions on the issue

    Kit5 steps · 21 tools · starter prompt ready

    1. Sourced (done)
    2. Kit (done)
    3. Wanted (next)
    4. Building
    5. Solved
    Open the kit →

    Be the first to want this solved. Nobody is building it yet.

  • Kit readyA semester

    Web & mobile · Anywhere

    Android users can't easily back up their phone to a computer on their own Wi-Fi.

    Solved looks like

    A way for a phone to back up to a computer on the same Wi-Fi without a public certificate, for example a small desktop helper that serves WebDAV over HTTPS with a certificate the phone trusts after a one-time pairing. Shown working with a full backup and restore of at least 10 apps.

    Proof2 sources · 3 quoted claims · github.com/seedvault-app, news.ycombinator.com · Oct 2026

    Market7 reactions on the issue

    Kit5 steps · 21 tools · starter prompt ready

    1. Sourced (done)
    2. Kit (done)
    3. Wanted (next)
    4. Building
    5. Solved
    Open the kit →

    Be the first to want this solved. Nobody is building it yet.