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xchehub / gist:10f445705fc48a0fcc0a9c48345ae856
Created February 18, 2022 14:19
mac install truffle failed
View gist:10f445705fc48a0fcc0a9c48345ae856
~  sudo npm install -g truffle  ✔  39s  21:46:54
npm WARN deprecated source-map-url@0.4.1: See
npm WARN deprecated mkdirp-promise@5.0.1: This package is broken and no longer maintained. 'mkdirp' itself supports promises now, please switch to that.
npm WARN deprecated urix@0.1.0: Please see
npm WARN deprecated fsevents@2.1.3: "Please update to latest v2.3 or v2.2"
npm WARN deprecated resolve-url@0.2.1:
npm WARN deprecated source-map-resolve@0.5.3: See
npm WARN deprecated apollo-tracing@0.15.0: The `apollo-tracing` package is no longer part of Apollo Server 3. See for details
npm WARN deprecated har-validator@5.1.5: this library is no longer su
xchehub /
Created May 24, 2017 08:54 — forked from jareware/
Simple, semi-anonymous backups with S3 and curl

⇐ back to the gist-blog at

Simple, semi-anonymous backups with S3 and curl

Backing stuff up is a bit of a hassle, to set up and to maintain. While full-blown backup suites such as duplicity or CrashPlan will do all kinds of clever things for you (and I'd recommend either for more complex setups), sometimes you just want to put that daily database dump somewhere off-site and be done with it. This is what I've done, with an Amazon S3 bucket and curl. Hold onto your hats, there's some Bucket Policy acrobatics ahead.

There's also a tl;dr at the very end if you just want the delicious copy-pasta.

Bucket setup

xchehub /
Created January 5, 2017 09:46 — forked from onyxraven/
Amazon RDS Performance Tuning Settings
#XLarge DBInstanceClassMemory = 15892177440 = 14.8GB
#/32 = 496630545 = 473MB
#/64 = 248315272 = 236MB
#/128 = 124157636 = 118MB
#/256 = 62078818 = 59MB
#/512 = 31039409 = 29MB
#/12582880 = 1263 #default same divisor as max_connections = 4041.6MB = 4237924762
#/25165760 = 623 # half of max_connections = 1993.6MB
#/50331520 = 315 # quarter of max_connections = 1008MB = 1056964608
#*(3/4) #default innodb pool size = 11922309120
xchehub /
Created October 28, 2016 02:57 — forked from leonardofed/
A curated list of AWS resources to prepare for the AWS Certifications

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.