Guided program setup
Choose intent and rules, set the program start and opening balance, then paste or import people.
- Begin with the next concrete action
Compliance · Public preview
Random Llama Randomizer
Random selection you can prove.
Guided random draws with a pool snapshot, independently verifiable certificates and PDF records. The v2 web app is available as a preview, with self-hosted and offline desktop options documented.
Inside Random Llama Randomizer
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Built around a specific job.
Random Llama Randomizer now has a guided v2 workflow: choose the program, configure its rules and start date, paste or import the roster, review the next draw, and retain its results. Each certificate records a seed commitment, HMAC-SHA256 ranking, pool snapshot and hash-chain evidence so another person can recompute and verify it through the app, API or CLI. Annual targets and opening balances use the configured program history. The Python/FastAPI backend serves a React PWA, with self-hosted and offline desktop options. The hosted preview runs on a persistent Postgres database. Sign-out revokes sessions server-side, the v2 member forms and roster imports no longer populate dedicated email or phone fields, and billing and reminder delivery remain configuration steps.
Guided setup, a clear next draw and certificates another person can verify.
- Seed commitment and pool snapshot make the selection reproducible
- Public, API and CLI certificate verification
- Guided program setup, pasted roster and history import
- Configured annual targets with a retained audit trail
- Self-hosted and offline desktop deployment options
Ways people use it
- Set up a program and roster through guided questions
- Run a random draw and record outcomes
- Independently verify a draw certificate
- Retain PDF records and inspect historical draws
- Import a legacy roster into the v2 workflow
The working scope.
- Guided program setupChoose intent and rules, set the program start and opening balance, then paste or import people.preview
- Reproducible random drawHMAC-SHA256 ranking over a committed seed and snapshotted pool.preview
- Independent verificationVerify certificates through /verify, the API or the Python CLI.preview
- PDF and history recordsRetain selection results, reasons, PDF evidence and linked historical records.preview
- Program-year targetsTargets, completed tests and opening balances use the configured program year.preview
- Hosted, self-hosted and desktop optionsA public web preview plus documented Docker and offline desktop launchers.preview
Feature details and benefits
Reproducible random draw
HMAC-SHA256 ranking over a committed seed and snapshotted pool.
- Verify how the selection was made
Independent verification
Verify certificates through /verify, the API or the Python CLI.
- Recompute the result
- Reject altered evidence
PDF and history records
Retain selection results, reasons, PDF evidence and linked historical records.
- Review what happened after the draw
Program-year targets
Targets, completed tests and opening balances use the configured program year.
- See the next required action
Hosted, self-hosted and desktop options
Hosted customer use still requires persistent database configuration; desktop and self-hosted options use their own configured data storage.
Project details.
| Platform | Web · Windows |
|---|---|
| Availability | Public preview |
| Version | 2.0.0-alpha.2 |
| Source record | October 2026Synchronization date, not a capture or launch date |
| Who it is for | Safety managers running regulated or non-regulated testing pools · Organizations that need reproducible selection evidence · Teams evaluating self-hosted or offline draw workflows |
| Tools behind the build | Python · FastAPI · React · TypeScript · Vite · SQLAlchemy · SQLite · Postgres · PyInstaller |
Public update log.
Recorded update · 2026-09-26 · 2.0.0-alpha.2
A guided v2 preview with verifiable draw certificates
Randomizer's v2 web workflow guides program setup, roster import, draws and evidence verification. The public preview runs on a persistent Postgres database as of October 9.
- Guided questions lead to the first draw
- Program start and opening balances support full-year targets
- Pasted and CSV roster imports preserve recorded identities and statuses
- Sign-out revokes sessions server-side; old tokens stop working
- The v2 member forms and roster imports no longer populate dedicated email or phone fields
- Verification recomputes the committed seed, ranking and pool snapshot
- PDF evidence and legacy roster import are available
- Hosted billing and reminder delivery remain configuration steps
| October 2026 | Session revocation and a leaner member recordSign-out now invalidates the session token server-side, so a copied cookie stops working the moment you sign out. The v2 member forms and roster imports no longer populate dedicated email or phone fields. The hosted preview runs on a persistent Postgres database. |
|---|---|
| September 2026 | A guided v2 preview with verifiable draw certificatesRandomizer's v2 web workflow guides program setup, roster import, draws and evidence verification. Deployment accepts a connected Postgres database. |
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