Get alerted the moment Bitcoin prices drop across exchanges

flowchart TD trig(["regular price check interval"]):::trigtime s0[["check exchange prices"]]:::mi s1["compare against threshold"]:::task s2["trigger price alert"]:::task s3["send email notification"]:::svc trig --> s0 s0 --> s1 s2 --> s3 gx{"× significant price drop found"}:::gate s1 --> gx p00["trigger alert"]:::task gx -->|"drop detected"| p00 p01["send email"]:::task p00 --> p01 p10["no action taken"]:::task gx -->|"no drop"| p10 p01 --> s2 p10 --> s2 out[/"email alert on price drop"/]:::out pay{{"catch buying opportunities early"}}:::pay s3 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff