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docs: document NSL_DEBUG, NSL_DRY_RUN, and NSL_CONFIRM_START_FRESH env vars

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Add an "Environment variable options" subsection to the Command Lines
section covering the new user-facing runtime toggles and the CLI
"Start Fresh" confirmation requirement, with copy-paste examples.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Aaron
2026-07-03 08:39:33 -04:00
co-authored by Claude Opus 4.8
parent 2f2380892a
commit 40a96fa311
1 changed files with 16 additions and 0 deletions
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@@ -204,6 +204,22 @@ The NSL script can be called from online via bash, heres an example of it instal
```/bin/bash -c 'curl -Ls https://raw.githubusercontent.com/moraroy/NonSteamLaunchers-On-Steam-Deck/main/NonSteamLaunchers.sh | nohup /bin/bash -s -- "Move to SD Card" "NonSteamLaunchers"'```
### Environment variable options 🔧
These optional environment variables can be set before running the script to change its behavior:
- ```NSL_DEBUG=1``` — Enable verbose execution tracing (`set -x`) in the install log. It's now **off by default**, so paths and values are no longer echoed into the log; turn it on when troubleshooting.
- ```NSL_DRY_RUN=1``` — Preview destructive actions (deletes and "Start Fresh") without actually removing anything. Each planned removal is printed with a `DRY RUN:` prefix.
- ```NSL_CONFIRM_START_FRESH=1``` — **Required** to run ```"Start Fresh"``` from the command line. Without it, a CLI "Start Fresh" refuses to run so it can't wipe everything by accident. (The Desktop/zenity confirmation prompt is unaffected.)
Example — preview what a "Start Fresh" would remove, without deleting anything:
```/bin/bash -c 'curl -Ls https://raw.githubusercontent.com/moraroy/NonSteamLaunchers-On-Steam-Deck/main/NonSteamLaunchers.sh | NSL_DRY_RUN=1 NSL_CONFIRM_START_FRESH=1 nohup /bin/bash -s -- "Start Fresh"'```
Example — actually run "Start Fresh" from the command line:
```/bin/bash -c 'curl -Ls https://raw.githubusercontent.com/moraroy/NonSteamLaunchers-On-Steam-Deck/main/NonSteamLaunchers.sh | NSL_CONFIRM_START_FRESH=1 nohup /bin/bash -s -- "Start Fresh"'```