COMING SOONAI system design risk evaluation

System architecture editor and walkthrough player

Design the system, then narrate the walkthrough.

Tierslate is an architecture diagram editor for software engineers. Lay out the services, queues and databases, wire them together, then play the finished board back one narrated step at a time - with your team editing alongside you.

Streaming service walkthrough: a viewer presses play, the playback service checks the plan and returns a signed manifest, video segments stream from the CDN, the cache fills from object storage, and new uploads are transcoded. PLAYBACK PATH DATA INGEST · ASYNC segments session cache fill renditions Viewer appweb, tv, mobileViewer appweb, tv, mobile API gatewayauth, rate limitAPI gatewayauth, rate limit Playback servicesigned manifestsPlayback servicesigned manifests Postgrescatalog, plansPostgrescatalog, plans CDN edgesegment cacheCDN edgesegment cache Redissession cacheRedissession cache Object storageHLS renditionsObject storageHLS renditions Studio uploadsource mastersStudio uploadsource masters Encode queuejob per titleEncode queuejob per title Transcoders1080p 720p 480pTranscoders1080p 720p 480p AI RISK · MEDIUMCOMING SOONNo shield tier. A new-release stampedelands straight on storage. Cache hit ratio is the costlever. Keep hot titles at theedge. Maya Boards/Streaming service — playback and ingest PRESENTING DK MR Share Walkthrough6 steps 1 Viewer presses play 2 Check the plan,open a session 3 Return a signedmanifest 4 Stream segmentsfrom the edge 5 Fill the cachefrom storage 6 Ingest and transcodenew titles Plays on a loop. Hover to pause. STEP 1 OF 6A viewer presses play. The app asks the API gateway to start a playback session. STEP 2 OF 6The playback service checks the plan in Postgres and caches the session in Redis. STEP 3 OF 6It answers with a signed manifest that points the player at the nearest CDN edge. STEP 4 OF 6The player pulls video segments from the CDN. Popular titles never leave the edge. STEP 5 OF 6On a cache miss the edge fills from object storage, where every rendition lives. STEP 6 OF 6New uploads are queued, transcoded into HLS renditions and written to storage.
The walkthrough player is on every plan
AI evaluates your system design for riskCOMING SOON
Runnable CREATE TABLE for four dialects
Your own boards are never paywalled

The board does all of it

One editor for the whole system, from diagram to walkthrough

System architecture diagrams

Lay out services, queues and databases on an infinite canvas and wire them together.

Narrated walkthrough playback

Author the story once, then play the board back one step at a time. The player is on every plan.

Live collaboration

Open a board with your team and edit it together - every change, selection and cursor as it happens.

Database design

Entities with typed columns joined by foreign keys, emitting runnable CREATE TABLE for four dialects.

Interview practice

Take apart a worked example, then rehearse your answer as a spoken walkthrough.

AI system design risk evaluation

COMING SOON

Have AI evaluate the board you drew. It flags single points of failure, bottlenecks and missing safeguards, each pinned to the part of the design it concerns.

Screen recording

PRO

Record a walkthrough straight to a video file from inside the app. Recording is part of Pro.

How it works

Lay it out. Wire it up. Play it back.

Lay out the system

Drop services, queues and databases onto an infinite canvas and wire them together.

Author the story once

Write the walkthrough as narrated steps, with your team editing the same board alongside you.

Play it back

Play the finished board back one narrated step at a time. On Pro, record it straight to a video file.

Pricing

Free to start. Pro when the team joins.

Either way the work stays yours: opening, editing, exporting and deleting your own boards are never paywalled.

Free

Everything you need to design and present a system.

  • Three boards
  • Link sharing
  • Live editing
  • Walkthrough player

Pro

COMING SOON

Everything in Free, without the board limit.

  • No board limit
  • Teams
  • Email invites
  • Screen recording