REFLOG LABS

Where history
is never lost!

Open source, built and broken in the open
Labs from your first commit to shipping CI pipelines
Every mistake is recoverable

Start Lab 01 View on GitHub →
HEAD@{0}: 1 lab open
// 01 LOOP

The Contribution Cycle

Four steps. Every one of them can be undone.

01 / STEP
Fork

Copy the upstream repository to your personal namespace without affecting the original codebase.

02 / STEP
Branch

Create an isolated workspace for your changes so main stays untouched and clean.

03 / STEP
Pull Request

Propose changes, receive reviewer feedback, run automated test suites, and iterate cleanly.

04 / STEP
Merge

Integrate verified code into production. History is safely recorded in Git refs forever.

// 02 LABS

Labs

0 / 12 in action, syncing...
01 LOCKED
Foundations : Basic
// queued for launch Reserved: opens on public release
02 LOCKED
Foundations : Basic
// queued for launch Reserved: opens on public release
03 LOCKED
Foundations : Intermediate
// queued for launch Reserved: opens on public release
04 LOCKED
Collaboration : Basic
// queued for launch Reserved: opens on public release
05 LOCKED
Collaboration : Intermediate
// queued for launch Reserved: opens on public release
06 LOCKED
Collaboration : Advanced
// queued for launch Reserved: opens on public release
07 LOCKED
Craft : Basic
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08 LOCKED
Craft : Intermediate
// queued for launch Reserved: opens on public release
09 LOCKED
Craft : Advanced
// queued for launch Reserved: opens on public release
10 LOCKED
Quality & Ship : Basic
// queued for launch Reserved: opens on public release
11 LOCKED
Quality & Ship : Intermediate
// queued for launch Reserved: opens on public release
12 LOCKED
Quality & Ship : Advanced
// queued for launch Reserved: opens on public release
// 03 UNDO MACHINE

The Undo Machine

1 Break it
2 Read the reflog
3 Recover
lesson-plan.md feat/curriculum
1 # Open Source Curriculum
2 1. Foundations: commits, branches, diffs
3 2. Collaboration: forks, issues, PR etiquette
4 3. Craft: interactive rebase, cherry-pick
5 4. Recovery: recovering lost commits with git reflog
6 5. Quality: test suites, regression tests, CI passes
7 6. Delivery: semantic versioning, release tags
Clean working tree.
git reflog (HEAD) feat/curriculum
  • HEAD@{0}: commit: feat: complete curriculum
    7f3b89a
  • HEAD@{1}: commit: add recovery and delivery
    a7c3e41
  • HEAD@{2}: commit: add craft exercises
    b2e5f88
  • HEAD@{3}: commit: draft initial outline
    9f2c1ab
HEAD@{1} indicates where HEAD was before the reset.
terminal - git bash