docs: review upstream fatihak/InkyPi for features to port (JTN-718)

[jtn0123]

Summary

Structured review of upstream fatihak/InkyPi to identify features/fixes worth porting to our fork. No code ports in this PR — review doc + follow-up Linear issues only.

• Merge base: 8d08acd (2025-12-12).
• Upstream commits scanned since merge-base: 25.
• Upstream open PRs scanned: 35.
• Upstream merged PRs scanned (since 2025-04-19): 50+.
• Decisions: 9 Port / 8 Maybe later / ~20 Rejected.

See docs/upstream-review-2026-04.md for the full shortlist, rationale per item, and porting sketches.

Follow-up Linear issues (filed for each "Port" item)

Issue	Upstream	Priority	What
JTN-767	#561	Medium	Plugin fallback logic & deprecation cleanup
JTN-768	#568	High	Grayscale background color crash fix
JTN-769	#613	High	Open-Meteo forecast day-label off-by-one
JTN-770	fatihak#663	Medium	Google Keep plugin
JTN-771	#489	Low	"Save as new instance" button
JTN-772	#451	Medium	Run-once mode + on-frame error rendering
JTN-773	fatihak#623	Medium	Mutable-default + security hardening batch
JTN-774	#600	Low	image_url configurable download timeout
JTN-775	#598	Low	Servo control plugin (rotating frame)

Test plan

• Reviewer spot-checks that "Rejected (already have it)" claims are accurate for 3-4 items via grep in our tree.
• Reviewer sanity-checks 1-2 "Port" items have enough detail in the Linear issue for another agent to pick up cold.

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: c349f207-2171-40e6-9208-c0bead6c0fdd

📥 Commits

Reviewing files that changed from the base of the PR and between f6ebb07 and 07f43b9.

📒 Files selected for processing (1)

• docs/upstream-review-2026-04.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jtn0123/jtn-718-upstream-review

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[github-actions]

Memory diff vs base

Metric	Base	PR	Delta
Peak RSS	29.10 MB	29.09 MB	-16.0 KB
sys.modules count	584	584	0

Top 20 startup allocators

#	Location	Base	PR	Delta
1	lark/visitors.py:180	1.00 MB	4.00 MB	+3.00 MB ⚠️
2	<frozen importlib._bootstrap>:488	5.09 MB	7.94 MB	+2.85 MB ⚠️
3	attr/_make.py:226	2.03 MB	0 B	-2.03 MB ⚠️
4	lark/lexer.py:215	2.00 MB	0 B	-2.00 MB ⚠️
5	parsers/lalr_parser_state.py:105	3.00 MB	1.00 MB	-2.00 MB ⚠️
6	lark/tree.py:67	2.00 MB	0 B	-2.00 MB ⚠️
7	<frozen importlib._bootstrap_external>:757	6.56 MB	5.46 MB	-1.10 MB ⚠️
8	lark/utils.py:326	1.01 MB	0 B	-1.01 MB ⚠️
9	lark/visitors.py:347	0 B	1.00 MB	+1.00 MB ⚠️
10	python3.12/dataclasses.py:473	0 B	1.00 MB	+1.00 MB ⚠️
11	arrow/locales.py:2577	1.00 MB	0 B	-1.00 MB ⚠️
12	lark/lexer.py:304	1.00 MB	0 B	-1.00 MB ⚠️
13	python3.12/ast.py:52	1.00 MB	0 B	-1.00 MB ⚠️
14	python3.12/typing.py:904	1.00 MB	0 B	-1.00 MB ⚠️
15	werkzeug/local.py:531	1.00 MB	0 B	-1.00 MB ⚠️
16	lark/tree.py:145	0 B	1.00 MB	+1.00 MB ⚠️
17	attr/_make.py:1207	0 B	1.00 MB	+1.00 MB ⚠️
18	re/_compiler.py:392	0 B	1.00 MB	+1.00 MB ⚠️
19	lark/load_grammar.py:537	0 B	1.00 MB	+1.00 MB ⚠️
20	lark/load_grammar.py:795	0 B	1.00 MB	+1.00 MB ⚠️

_{JTN-610 · backend=base:memray, pr:memray · informational only, does not block merge. Hard RSS budgets are enforced separately by JTN-608.}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud