How to use Codex to build an offline iPhone player
Dean Hipkiss built a SwiftUI music player with Codex in Xcode, using a design brief to guide AVPlayer, background audio, AirPlay and project-specific debugging.
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Dean Hipkiss built a SwiftUI music player with Codex in Xcode, using a design brief to guide AVPlayer, background audio, AirPlay and project-specific debugging.
AddedCodex built Domoranda’s applicable home-care records and caught truncated coach responses; the owner retained safety, privacy and production launch decisions.
AddedCodex turned Figma travel designs into offline Fly Mode and time-zone widgets, with human privacy choices, regression review and TestFlight release preparation.
AddedChristo Roberts used Codex to ship RepoFinder on Cloudflare Workers, verifying contracts in a temporary clone and adding recommendations with visible fallbacks.
AddedCodex built ClearDay’s source-grounded task prototype with visible document conflicts, persistent evidence and drafts; fictional samples imply no real actions.
AddedCodex inferred a robot brush-tip offset from three uncalibrated camera views, checked new wrist angles, and operated within the maker’s motion safeguards.
AddedCodex helped improve Ghostline’s Android race and timing-sensitive checkpoint detection; Pattanaik checked actual APKs after stale builds confused verification.
AddedCodex challenged Safe to Spend’s cash-flow proof and chat gates; independent checks and a failed forecast promotion gate limited claims before the release.
Addedkaancata reports using Codex to compare Google Ads search-term costs with CRM lead outcomes and prepare reasoned negative-keyword candidates, grounded in saved report files.
AddedCodex collected 33 card-statement CSVs and prepared an accountant email; the owner handled login, corrected a false reason and approved the ZIP before sending.
AddedKyle Corbitt used Codex to gather records for a complicated 2025 return. His finances folder already held earlier tax forms and donation receipts, giving the agent a starting point for deciding what new paperwork was needed.
AddedCodex coordinated four simulated rescue robots through WebMCP, with one human-approved mission, temporary execution authority, a receipt, and tool revocation.
AddedHuang reports Codex researching and producing an editable Harness Engineering presentation, reviewing slide screenshots and revising both text and visual choices.
AddedCodex helped build a local HVAC controller and interpret its telemetry. A real RS485 fault was diagnosed and restored while deterministic control stayed local.
AddedCodex connected the family’s Apple calendar read-only to a Raspberry Pi and iPad display, retrieving 14 checked events while keeping editing on the iPhone.
AddedMakelky reports a published 31.7-second fishing montage assembled by Codex from real footage and ten photos, revised through mobile MP4 reviews and delivered in two export versions.
AddedCodex helped build a continuous flight evaluation after paused-time cheating; three blind simulated landings retained full tool and timing evidence for review.
AddedOren Yomtov tested Codex patch and JavaScript trust boundaries, reported two sandbox failures, and documented separate vendor fixes within eight days.
AddedCodex produced malware assessments and evidence-backed IOC artifacts in FLARE-VM. Incomplete strings stayed labelled; execution required engineer approval.
AddedCodex added stable labels and photo-backed box records to a family archive; the owner corrected packing links and used retrieval images to locate stored art.
AddedDr. Eva-Maria Hempe tested Codex against an actual travel requirement: reaching Frankfurt by 10:30 on June 29. A comparison of flights, trains and driving needed to include the journeys to stations or airports and the final leg to the meeting location.
AddedCodex repaired Faultline’s replay and daily-reward edge cases, separating a dated ledger from bounded history and checking storage and keyboard behavior.
AddedCodex traced Java call paths to vulnerable dependencies and generated executable proofs. Build feedback and human validation checked what the tests showed.
AddedCodex built Cold Case with backward crime generation, unique-culprit checks, and one seeded random stream, publishing a replayable offline mystery game.
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